LEVOIT VESYNC CORE 400S User Manual

USER MANUAL  
Levoit VeSync Core™ 400S  
Smart True HEPA Air Purifier  
Product Series: Core 400S  
Model: Core 400S  
Questions or Concerns?  
Please contact us Mon–Fri, 9:00 am–5:00 pm PST/PDT  
at [email protected] or at (888) 726-8520.  
READ AND SAVE THESE  
INSTRUCTIONS  
SAFETY INFORMATION  
To reduce the risk of fire, electric shock, or other injury, follow all instructions and safety guidelines.  
WARNING: To reduce the risk of fire  
or electric shock, do not use this air  
purifier with any solid-state speed  
controls (such as a dimmer switch).  
Not for commercial use. Household  
use only.  
General Safety  
Only use your air purifier as described in  
this manual.  
Do not use without removing the plastic  
wrap from the filter. The air purifier will  
not filter air, and may overheat, causing  
a fire hazard.  
Power & Cord  
Do not use the air purifier outdoors.  
Keep the air purifier away from water,  
and wet or damp areas. Never place  
in water or liquid.  
Keep the air purifier near the outlet it is  
plugged into.  
Never place the cord near any heat source.  
Do not cover the cord with a rug, carpet,  
or other covering. Do not place the cord  
under furniture or appliances.  
Do not use in excessively humid areas.  
Keep the air purifier away from heat sources.  
Do not use where combustible gases,  
vapors, metallic dust, aerosol (spray)  
products, or fumes from industrial oil  
are present.  
Keep the cord out of areas where people  
walk often. Place the cord where it will  
not be tripped over.  
Keep 5 ft / 1.5 m away from where oxygen  
is being administered.  
This appliance has a polarized plug (one  
blade is wider than the other). To reduce  
the risk of electric shock, this plug is  
intended to fit in a polarized outlet only  
one way. If the plug does not fit fully in the  
outlet, reverse the plug. If it still does not  
fit, contact a qualified electrician. Do not  
attempt to defeat this safety feature.  
This air purifier uses standard US 120V,  
60Hz outlets. If using outside the US,  
check for compatibility.  
Supervise children when they are near  
the air purifier.  
Do not place anything into any opening in  
the air purifier.  
Do not sit on or place heavy objects on  
the air purifier.  
Keep the inside of the air purifier dry. To  
prevent moisture buildup, avoid placing in  
rooms with major temperature changes or  
underneath air conditioners.  
Always unplug the air purifier before  
servicing (such as changing the filter).  
Do not use the air purifier if it is damaged  
or not working correctly, or if the cord or  
plug is damaged. Do not try to repair it  
yourself. Contact Customer Support  
(see page 20).  
Electromagnetic Fields (EMF)  
Your Levoit air purifier complies with all  
standards regarding electromagnetic fields  
(EMF). If handled properly and according  
to the instructions in this user manual, the  
appliance is safe to use based on scientific  
evidence available today.  
3
GETTING TO KNOW YOUR SMART AIR PURIFIER  
A. Fan Speed Indicators  
B. Fan Speed Button  
C. Sleep Mode Button  
D. Air Quality Indicator Rings  
E. Check Filter Indicator Reset Button  
F. Check Filter Indicator  
G. Timer Button  
L. Display Off Button  
M. Display Lock Indicator  
N. Display Lock Button  
O. Air Outlets  
P. Housing  
Q. Air Inlets  
R. AirSight™ Plus Laser Dust Sensor  
S. Anti-Skid Pads  
H. On/Off Button  
I. Wi-Fi® Indicator  
T. Filter Cover  
J. Auto Mode Button  
K. PM2.5/Timer Display  
U. True HEPA 3-Stage Original Filter  
A
I
B
C
D
J
K
S
T
E
F
L
M
N
G
H
U
O
P
R
Q
Back  
Front, upside down  
4
CONTROLS & DISPLAY  
Timer Button  
On/Off Button  
Cycles through timer  
options (see page 9).  
Turns the air purifier on/off.  
Press and hold to configure  
the air purifier. See the  
VeSync in-app instructions  
for more information.  
Press and hold  
for 2  
seconds to begin cycling  
through the timer options  
in 1-hour increments.  
Press and hold to reset the  
air purifier and disconnect  
from Wi-Fi (see page 7).  
Auto Mode Button  
Turns Auto Mode on/off  
(see page 8).  
Air Quality Indicator Rings  
These indicators use an  
automatic sensor to display  
the air quality: Blue (Very  
Good), Green (Good),  
Orange (Moderate), and  
Red (Bad).  
Display Off Button  
Turns the display off  
(see page 9).  
Tap any button (except  
)
to turn the display back on.  
Wi-Fi® Indicator  
Turns on, off, or blinks to  
indicate pairing status.  
See the VeSync in-app  
instructions for more  
information.  
Display Lock Button  
Prevents current settings  
from being changed (see  
page 9). Press and hold for  
3 seconds to turn Display  
Lock on/off.  
Fan Speed Button  
The Display Lock Indicator  
Cycles through fan speeds:  
low (1 indicator will light up),  
medium (2 indicators), high  
(3 indicators), and turbo  
(4 indicators).  
(
) will blink when any  
other button is tapped to  
indicate that Display Lock  
is on.  
Tapping the Fan Speed  
Button while the air purifier  
is in Auto Mode or Sleep  
Mode (if the display is on)  
will exit that mode.  
Check Filter Indicator Reset  
Button  
Press and hold for 3  
seconds to reset the  
Check Filter Indicator.  
The Check Filter Indicator  
lights up when the filter  
should be checked (see  
page 13).  
Sleep Mode Button  
Turns Sleep Mode on/off  
(see page 8).  
5
GETTING STARTED  
3. Replace the filter cover and twist  
1. Flip the air purifier over or turn it  
on its side. Twist the filter cover  
counterclockwise and remove it.  
[Figure 1.1]  
clockwise to lock. [Figure 1.3]  
cover should  
snap shut  
Figure 1.3  
Figure 1.1  
2. Remove the filter from its plastic  
packaging and place the filter back  
into the air purifier. [Figure 1.2]  
4. Place the purifier on a flat, stable surface  
with the display facing up. Allow at least  
15 inches / 38 cm of clearance on all  
sides. Keep away from anything that  
would block airflow, such as curtains.  
[Figure 1.4]  
15 in /  
38 cm  
15 in /  
38 cm  
Figure 1.4  
Figure 1.2  
6
VeSync App Setup  
USING YOUR SMART  
AIR PURIFIER  
Note: Using the VeSync app allows you to control  
your air purifier remotely and access additional  
functions and features.  
1. To download the VeSync app, scan the  
QR code or search “VeSync” in the Apple  
App Store® or Google Play Store.  
2. Open the VeSync app. Log In or Sign Up.  
3. Follow the in-app instructions to set up  
1. Plug in and tap  
to turn on the air  
your smart air purifier.  
purifier. The fan will start on low speed.  
[Figure 2.1]  
2. Optionally, tap  
to change fan speed  
between low, medium, high, and turbo.  
Note:  
The fan speed indicators will light  
up when active. 1 indicator will light  
up for low, 2 for medium, 3 for high,  
and 4 for turbo.  
Turbo speed is the loudest, but cleans  
air the quickest.  
For best results, or to address a specific  
air quality issue such as smoke, run the  
air purifier at turbo speed for 15–20  
minutes before using a lower speed.  
Note:  
To disconnect Wi-Fi, press and hold the  
On/Off button for 15 seconds until the  
Wi-Fi indicator turns off. This will restore  
the smart air purifier’s default settings  
and disconnect it from the VeSync app.  
To effectively clean air, keep windows  
and doors closed while the air purifier  
is on.  
To reconnect, please follow the instructions  
in the VeSync app for adding a device.  
3. Tap  
to turn off the air purifier.  
Connect with Amazon Alexa or  
Google Assistant™  
You can use the VeSync app to connect  
your smart air purifier to Amazon Alexa or  
Google Assistant™. Please follow the in-app  
instructions to set up your voice assistant.  
Note: You must create your own VeSync account  
to access voice assistants.  
Figure 2.1  
7
USING YOUR PURIFIER (CONT.)  
Sleep Mode  
Note:  
The air purifier will take 5 seconds  
to detect the air quality each time  
it is turned on. During this time, the  
air quality indicator rings will be  
blue. After 5 seconds, the air quality  
indicator rings will change color  
based on the detected air quality.  
Sleep Mode operates quietly by using a fan  
speed lower than low speed.  
1. Tap  
to turn Sleep Mode on/off.  
2. Sleep Mode will turn off the display after  
3 seconds if no other buttons are tapped.  
Auto Mode does not use the turbo  
fan speed.  
Note:  
The VeSync app also supports  
additional auto modes: Quiet Auto  
Mode and Efficient Auto Mode  
(see page 10).  
When the display is turned off, tap any  
button (except ) to turn the display  
back on. If you don’t tap another  
button, the display will turn off again  
after 3 seconds.  
The Check Filter Indicator will still turn  
on and stay on if it’s time to check your  
filter (see page 13).  
PM2.5 Display  
The PM2.5 value on the display shows the  
amount of airborne particles (µg) that are  
detected per 1 cubic meter (m³) of air volume.  
Auto Mode  
PM2.5 refers to particulate matter (PM) that  
is less than or equal to 2.5 microns (µm) in  
diameter. These particles, also known as  
“fine particles”, are so small that they can only  
be detected with an electron microscope,  
and they stay in the air longer than heavier  
particles such as dust and mold.  
Auto Mode uses AirSight™ Plus, a smart  
laser dust sensor inside the air purifier, to  
adjust the fan speed automatically based  
on air quality. For example, if the air quality  
is bad, the fan will automatically be set to  
high speed.  
Your air purifier’s AirSight Plus Laser Dust  
Sensor detects the amount of PM2.5 particles  
that are in a given space (µg/m³). Generally, the  
lower the number, the better your air quality.  
A number above 115 indicates that there is an  
unhealthy amount of fine particles in the air.  
Air Quality Indicator Chart  
Indicator Color  
Blue  
Air Quality  
Auto Mode Fan Speed  
PM 2.5 Range  
0–35 ug/m3  
36–75 ug/m3  
76–115 ug/m3  
> 115 ug/m3  
Very Good  
Good  
Sleep Mode  
Low  
Green  
Orange  
Red  
Moderate  
Bad  
Medium  
High  
8
USING YOUR PURIFIER (CONT.)  
Timer  
Display Off  
You can set a timer for 1–12 hours.  
This turns off the display lights on the air  
purifier, including button lights and indicator  
lights (except the Check Filter Indicator).  
1. Tap  
. The display will switch from  
showing the PM2.5 reading to the time  
you’ve selected.  
1. Tap  
to turn off the display.  
2. Tap  
repeatedly to select a time in  
1-hour increments. If you don’t touch any  
buttons for 5 seconds, the display will  
switch to showing the PM2.5 reading and  
the timer will start automatically.  
2. Tap any button (except  
or  
) to  
temporarily turn the display back on. If  
you don’t tap another button, the display  
will turn back off after 3 seconds.  
3. Tap  
to turn the display back on. The  
display will stay on.  
Note: Press and hold  
cycle through timer options automatically in  
1-hour increments.  
for 2 seconds to  
Note: The Check Filter Indicator will still  
turn on and stay on if it’s time to check  
your filter (see page 13).  
3. The timer will count down from your  
selected time.  
Display Lock  
Note:  
While a timer is active, tapping  
will  
When the air purifier is on, you can lock  
the display to prevent settings from being  
accidentally changed. Buttons will not  
respond to being tapped.  
show the remaining time, rounded up to  
the nearest hour. Tap  
again within  
5 seconds to add more time in 1-hour  
increments.  
1. Press and hold  
for 3 seconds to lock  
indicator will light up  
You can see the exact remaining time in  
the VeSync app.  
the display. The  
in the center of the display.  
4. When the timer is finished, the air purifier  
Note: If the display is turned off, the  
indicator will flash 3 times to show that the  
display has been locked, then turn off.  
will turn off.  
5. To cancel a timer, tap  
repeatedly until  
the display reads “--H”.  
2. The  
indicator will blink when any  
other button is tapped to indicate that  
Display Lock is on.  
Note:  
You can change the fan speed at any  
time while the timer is on.  
3. Tap and hold  
again for 3 seconds  
The timer will restart if the time is changed.  
to unlock the display. The  
will turn off.  
indicator  
The air purifier will remember the last timer  
setting while turned off, but the timer will  
be cancelled and need to be restarted.  
Note:  
You can set a timer for 1–24 hours in the  
VeSync app.  
If the display is turned off, the  
indicator will flash 3 times to show  
that the display has been unlocked.  
Display Lock can still be used when  
the air purifier is in Standby Mode.  
9
USING YOUR PURIFIER (CONT.)  
Auto Mode  
Standby Mode  
Access additional Auto Modes: Quiet  
Auto Mode and Efficient Auto Mode.  
The air purifier is in Standby Mode when it is  
turned off, but plugged in.  
Quiet Auto Mode uses medium fan  
speed instead of the high or turbo fan  
speeds, even when the air quality is  
poor, to avoid making too much noise.  
Note: Display Lock can be used while the  
air purifier is in Standby Mode to keep  
the air purifier from being turned back  
on. The laser dust sensor will still detect  
the surrounding air quality and give you  
updates in the VeSync app.  
Efficient Auto Mode lets you choose  
the size of the area you want to  
purify. The air purifier will use the  
highest fan speed (turbo) to clean the  
air for a designated amount of time.  
This time is based on ACH 1 and the  
size of the room, meaning how long  
it takes for the air purifier to clean  
all the air in your room one time,  
regardless of the air quality. After this,  
the mode will adjust the fan speed  
according to the actual detected air  
quality in the room.  
Memory Function  
When the air purifier is plugged in and turned  
off, it will remember its previous fan speed,  
Sleep Mode, Auto Mode, Display Lock, and  
Display Off settings.  
When the air purifier is unplugged and turned  
off, it will only remember its previous fan  
speed, Sleep Mode, and Auto Mode.  
Note: Efficient Auto Mode is useful  
for purifying odors from the air. The  
air purifier’s sensor can only detect  
particles in the air, not smells. Efficient  
Auto Mode does not rely on the  
sensor, but the room size instead.  
Note: The air purifier will remember the last  
timer setting chosen (1–12 hours), but it will  
not automatically resume the timer. You will  
need to restart the timer after the air purifier  
is turned back on.  
Schedules  
Create and customize schedules for  
your air purifier to match your routines.  
VeSync App Functions  
The VeSync app allows you to access  
additional smart air purifier functions, including  
those listed below. As the app develops, more  
features may become available.  
Timer Function  
Set a timer between 1–24 hours.  
Remote Control  
Easily view the exact time remaining  
on a timer.  
Change any air purifier settings  
through the app, even while  
Display Lock is on.  
Filter Replacement Info  
Keep tabs on the remaining filter life  
by checking the filter life percentage  
in the app.  
Air Quality Updates  
View real-time PM2.5 updates in the app.  
See your air quality history for the  
previous week.  
Shop for replacement filters.  
10  
ABOUT THE FILTER  
The air purifier uses a 3-stage filtration  
system to purify air.  
A
B
C
C. Custom High-Efficiency Activated  
A. Pre-Filter  
Carbon Filter  
Captures large particles such as  
dust, lint, fibers, hair, and pet fur.  
Physically adsorbs smoke, odors,  
and fumes.  
Maximizes the filter’s life by  
protecting it.  
Customized using Levoit’s exclusive  
ARC Formula™ to be especially  
effective for cooking smells and pet  
odors in a multi-pet household.  
B. H13 True HEPA Filter  
Captures at least 99.97% of airborne  
particles 0.3 microns (µm) in size.  
The ARC Formula extends the life of  
the filter by chemically decomposing  
molecules trapped within the  
Activated Carbon Filter, which  
prevents oversaturation and second-  
hand pollution.  
Traps small particles such as fine  
dust, smoke particles, and allergens  
such as pollen and pet dander.  
Filters compounds such as  
formaldehyde, benzene, ammonia,  
hydrogen sulfide, and volatile  
organic compounds (VOCs).  
Note: Levoit air purifiers filter airborne particles 0.3 microns in size. Arovast Corporation makes no  
claims that this air purifier helps reduce the COVID-19 virus.  
11  
ABOUT THE FILTER (CONT.)  
Clean Air Delivery Rate  
Humidity  
This air purifier has a Clean Air Delivery Rate of  
260 cubic feet per minute (CFM), or 442 m³/h.  
Moisture may damage the filter. This air  
purifier should be used in an area with a  
humidity level below 85% RH. If you use  
the air purifier in excessively humid areas,  
the surface of the filter may become moldy.  
Clean Air Delivery Rate (CADR) measures the  
efficiency of an air purifier by indicating the  
volume of clean air that an air purifier produces  
per minute. This is based on removal of dust,  
pollen, and smoke, which are the 3 most  
common indoor air pollutants. The higher the  
CADR, the more particles the air purifier will  
remove and the larger the area it can clean.  
The rating is measured at the air purifier’s  
highest speed.  
Note: Water or moisture will allow mold  
to grow. To solve a mold problem, get  
rid of the source of the moisture and  
clean up the mold.  
Essential Oils  
Do not add essential oils to the air purifier  
or filter. The filter will become damaged  
by the oil and will eventually release an  
unpleasant smell. Do not use diffusers  
near the air purifier.  
Air Change Per Hour  
The air change rate is how many times all of  
the air in a room can be purified (or “changed”)  
by the air purifier in 1 hour. Air changes per hour  
(ACH) are calculated with the recommended  
room size assuming 8 ft / 2.4 m ceilings. For  
smaller rooms, the air change per hour will  
increase. This air purifier has an air change  
per hour of 5, which means it can change  
air 5 times per hour at the max speed in a  
single, closed room up to 403 ft² / 37 m². The  
air purifier is effective for larger rooms, but  
air purification will take longer, with fewer air  
changes per hour.  
Note: To effectively clean air, keep windows  
and doors closed while the air purifier is on.  
12  
CARE & MAINTENANCE  
Cleaning the Smart Air Purifier  
Cleaning the Filter  
Unplug before cleaning.  
The outer pre-filter should be cleaned every  
2–4 weeks to increase efficiency and extend  
the life of your filter. Clean the pre-filter using  
a soft brush or vacuum hose to remove hair,  
dust, and large particles. Do not clean the  
filter with water or other liquids.  
Wipe the outside of the air purifier  
with a soft, dry cloth. If necessary,  
wipe the housing with a damp cloth,  
then immediately dry.  
Vacuum the inside of the air purifier.  
Do not clean with abrasive chemicals  
or flammable cleaning agents.  
Resetting the Check  
Filter Indicator  
Check Filter Indicator  
Reset the Check Filter Indicator when:  
A.  
lights up red.  
will light up as a reminder to check the  
filter. Depending on how often you use  
the air purifier, the indicator should turn on  
at about 12 months. You may not need to  
change your filter yet, but you should check  
1. Replace the filter (see page 14).  
2. Turn on the air purifier.  
3. Press and hold the  
button for  
it when  
turns on.  
3 seconds.  
When your air purifier is set up with the  
VeSync app, you can also check the app to  
see your remaining filter life. You will also  
receive a notification from VeSync when it’s  
time to check your filter.  
4.  
will turn off when successfully  
reset.  
B. The filter was changed before  
lit up.  
1. Press and hold the  
button for  
The VeSync app uses a scientific algorithm to  
determine your filter life based on air quality,  
amount of use, and other factors. The filter life  
percentage is based on 12 hours of daily use.  
3 seconds.  
2. The  
will flash for 3 seconds.  
3.  
will turn off when successfully  
reset.  
Filter  
When to Clean  
How to Clean  
When to Replace  
Every 2–4  
weeks  
Use a soft brush or  
vacuum hose  
Pre-Filter  
12 months  
True HEPA  
& Activated  
Carbon Filter  
Do not clean  
13  
CARE & MAINTENANCE (CONT.)  
When Should I Replace the  
Filter?  
Replacing the Filter  
1. Unplug the air purifier. Flip the air purifier  
over or turn it on its side. Remove the  
filter cover (see Getting Started, page 6).  
The filter should be replaced every 12  
months. You may need to replace your filter  
earlier or later depending on how often you  
use your air purifier. Using your air purifier in  
an environment with relatively high pollution  
may mean you will need to replace the filter  
2. Remove the old filter.  
3. Clean out any remaining dust or hair  
inside the air purifier using a vacuum  
hose. Do not use water or liquids to  
clean the air purifier. [Figure 3.2]  
more often, even if  
is off.  
You may need to replace your filter if  
you notice:  
4. Unwrap the new filter and place it into the  
housing (see Getting Started, page 6).  
Increased noise when the air  
purifier is on  
5. Replace the cover. Plug in the air purifier.  
6. Reset the Check Filter Indicator  
Decreased airflow  
Unusual odors  
(see page 13).  
A visibly clogged filter  
Storage  
Note:  
If not using the air purifier for an extended  
period of time, wrap both the air purifier and  
the filter in plastic packaging and store in a  
dry place to avoid moisture damage.  
To maintain the performance of your  
air purifier, only use official Levoit  
filters. To buy replacement filters, visit  
Levoit’s online store. Go to levoit.com  
for more information.  
Remember to reset  
after changing  
the filter (see page 13).  
Cleaning the AirSight Plus  
Laser Dust Sensor  
The AirSight Plus Laser Dust Sensor can be  
blocked by dust, which affects the sensor’s  
accuracy. Clean the sensor every 3 months.  
Using your air purifier in an environment with  
more dust may mean you will need to clean  
the sensor more often.  
Figure 3.2  
1. Unplug the air purifier.  
2. Place the end of a vacuum cleaner over  
the sensor openings. [Figure 3.3]  
3. Turn the vacuum on for at least 10  
seconds to clean out dust.  
Figure 3.3  
14  
TROUBLESHOOTING  
Problem  
Possible Solution  
Air purifier will not  
turn on or respond to  
button controls.  
Plug in the air purifier.  
Check to see if the power cord is damaged. If it is, stop using the air  
purifier and contact Customer Support (see page 20).  
Plug the air purifier into a different outlet.  
The air purifier may be malfunctioning. Contact Customer Support  
(see page 20).  
Airflow is significantly  
reduced.  
Make sure the filter is removed from its packaging and properly in  
place (see page 6).  
Tap  
to increase the fan speed.  
Leave 15 inches / 38 cm of clearance on all sides of the air purifier.  
The pre-filter may be clogged by large particles, such as hair or  
lint, blocking airflow. Clean the pre-filter (see page 13).  
Replace the filter (see page 14).  
Air purifier makes an  
unusual noise while  
the fan is on.  
Make sure the filter is properly in place with plastic packaging  
removed (see page 6).  
Make sure the air purifier is operating on a hard, flat, level surface.  
Replace the filter (see page 14).  
The air purifier may be damaged, or a foreign object may be  
inside. Stop using the air purifier and contact Customer Support  
(see page 20). Do not try to repair the air purifier.  
Strange smell coming  
from the air purifier.  
Clean the filter, or replace if necessary.  
Contact Customer Support (see page 20).  
Make sure not to use your air purifier in an area with high  
humidity or while diffusing essential oils.  
15  
TROUBLESHOOTING (CONT.)  
Problem  
Possible Solution  
Tap to increase the fan speed.  
Poor air purification  
quality.  
Make sure no objects are blocking the sides or top of the air purifier  
(the inlet or outlet).  
Make sure the filter is removed from its packaging and properly in  
place (see page 6).  
Close doors and windows while using the air purifier.  
If the room is larger than 403 ft² / 37 m², air purification will take longer.  
The air purifier may not be as effective in significantly larger rooms.  
Replace the filter (see page 14).  
Reset the Check Filter Indicator (see page 13).  
is still on after  
replacing the filter.  
has not turned on  
within 12 months.  
is a reminder for you to check the filter and will light up based  
on how much the air purifier has been used (see page 13). If you  
don’t use your air purifier often,  
will take longer to turn on.  
turned on before  
12 months.  
is a reminder for you to check the filter and will light up based  
on how much the air purifier has been used (see page 13). If you  
run your air purifier frequently,  
will turn on sooner.  
Air Quality Indicator  
always stays red.  
The AirSight Plus Laser Dust Sensor may need to be cleaned  
(see page 14).  
If you’re using an ultrasonic humidifier near the air purifier, the mist  
may affect the accuracy of the AirSight Plus Laser Dust Sensor.  
The sensor will detect the large mist particles, and the Air Quality  
Indicator may turn red. Avoid using an ultrasonic humidifier near  
the air purifier, or avoid using Auto Mode.  
Air Quality Indicator  
always stays blue,  
even when the air  
quality is poor.  
The AirSight Plus Laser Dust Sensor detects airborne particles, but  
it cannot detect gas. Make sure there isn’t gas polluting the air.  
Display shows Error  
Code “E1”.  
The motor has malfunctioned. Please contact Customer Support  
(see page 20).  
If your problem is not listed, please contact Customer Support (see page 20).  
16  
VESYNC APP TROUBLESHOOTING  
My smart air purifier isn’t connecting to the VeSync app.  
Make sure your phone has Bluetooth® turned on and is not currently connected to  
another Bluetooth device.  
During the setup process, you must be on a secure 2.4GHz Wi-Fi® network. Confirm  
that the network is working correctly.  
Make sure the Wi-Fi password you entered is correct.  
There should be no spaces at the beginning or end of the password.  
Test the password by connecting a different electronic device to the router.  
If you’re manually typing in the SSID and password, double check that both  
are entered correctly.  
Try moving your air purifier closer to the router. Your phone should be as close as  
possible to your air purifier.  
Your router may need to be at a higher location, away from obstructions.  
Make sure your air purifier and router are away from appliances (such as microwave  
ovens, refrigerators, electronic devices, etc.) to avoid signal interference.  
If you’re using a VPN, make sure it’s turned off while setting up your air purifier.  
Disable portal authentication for your Wi-Fi network. If portal authentication is enabled,  
the air purifier will not be able to access your Wi-Fi network, and setup will fail.  
Note: Portal authentication means that you need to sign in to your Wi-Fi network through  
a web page before you can use the Internet.  
My air purifier is offline.  
Make sure the air purifier is plugged in and has power, then refresh the VeSync  
menu by swiping down on the screen.  
Make sure your router is connected to the internet and your phone’s network  
connection is working.  
Delete the offline air purifier from the VeSync app. Swipe left (iOS®) or press and  
hold (Android™), then tap Delete. Reconfigure the air purifier with the VeSync app.  
Note: Power outages, internet outages, or changing Wi-Fi routers may cause the air  
purifier to go offline.  
If your problem is not listed, please contact Customer Support (see page 20).  
17  
FEDERAL COMMUNICATION COMMISSION  
INTERFERENCE STATEMENT  
This device complies with Part 15 of the FCC Rules. Operation is subject to the following  
two conditions:  
1. This device may not cause harmful interference, and  
2. This device must accept any interference received, including interference that may  
cause undesired operation.  
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital  
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable  
protection against harmful interference in a residential installation. This equipment generates,  
uses and can radiate radio frequency energy and, if not installed and used in accordance with  
the instructions, may cause harmful interference to radio communications. However, there is  
no guarantee that interference will not occur in a particular installation. If this equipment does  
cause harmful interference to radio or television reception, which can be determined by turning  
the equipment off and on, the user is encouraged to try to correct the interference by one or  
more of the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment into an outlet on a circuit different from that to  
which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
FCC Caution: Any changes or modifications not expressly approved by the party responsible  
for compliance could void the user’s authority to operate this equipment.  
FCC RADIATION EXPOSURE STATEMENT  
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled  
environment. End users must follow the specific operating instructions for satisfying RF exposure  
compliance. To maintain compliance with FCC RF exposure compliance requirements, please  
follow operation instructions as documented in this manual. This transmitter must not be co-  
located or operating in conjunction with any other antenna or transmitter. This equipment should  
be installed and operated with a minimum distance of 20cm between the radiator and your  
body. The availability of some specific channels and/or operational frequency bands are country  
dependent and are firmware programmed at the factory to match the intended destination. The  
firmware setting is not accessible by the end user.  
18  
WARRANTY INFORMATION  
Arovast will not be liable for indirect,  
Product Name Smart True HEPA Air Purifier  
incidental, or consequential damages in  
connection with the use of the product  
covered by this warranty.  
Model Core 400S  
For your own reference, we strongly recommend  
that you record your order ID and date of  
purchase.  
This warranty extends only to the original  
consumer purchaser of the product and is  
not transferable to any subsequent owner  
of the product regardless of whether the  
product is transferred during the specified  
term of the warranty.  
Date of Purchase  
Order ID  
Terms & Policy  
This warranty does not extend to products  
purchased from unauthorized sellers.  
Arovast’s warranty extends only to products  
purchased from authorized sellers that are  
subject to Arovast’s quality controls and  
have agreed to follow its quality controls.  
Arovast Corporation (Arovast”) warrants  
this product to the original purchaser  
to be free from defects in material and  
workmanship, under normal use and  
conditions, for a period of 1 year from  
the date of original purchase.  
All implied warranties are limited to the  
period of this limited warranty.  
Arovast agrees, at our option during the  
warranty period, to repair any defect in  
material or workmanship or furnish an equal  
product in exchange without charge, subject  
to verification of the defect or malfunction  
and proof of the date of purchase.  
This warranty gives you specific legal rights  
and you may also have other rights which  
vary from state to state. Some states do not  
allow the exclusion or limitation of incidental  
or consequential damages, so the above  
limitation or exclusion may not apply to you.  
There is no other express warranty. This  
warranty does not apply:  
If you discover that your product is  
If the product has been modified  
from its original condition;  
defective within the specified warranty  
period, please contact Customer Support  
via [email protected]. DO NOT dispose  
of your product before contacting us. Once  
our Customer Support Team has approved  
your request, please return the product  
with a copy of the invoice and order ID.  
If the product has not been used  
in accordance with directions and  
instructions in the user manual;  
To damages or defects caused by  
accident, abuse, misuse or improper  
or inadequate maintenance;  
To damages or defects caused by  
service or repair of the product  
performed by an unauthorized  
service provider or by anyone other  
than Arovast;  
Extend Your Warranty by 1 Year  
Register your product within 14 days of  
to extend your 1-year warranty by an  
additional year.  
To damages or defects occurring  
during commercial use, rental use,  
or any use for which the product is  
not intended;  
This warranty is made by:  
To damages or defects exceeding  
Arovast Corporation  
1202 N. Miller St., Suite A  
Anaheim, CA 92806  
the cost of the product.  
19  
CUSTOMER SUPPORT  
If you have any questions or concerns about  
your new product, please contact our helpful  
Customer Support Team.  
Distributed by Arovast Corporation  
1202 N. Miller St., Suite A  
Anaheim, CA 92806  
Toll-Free: (888) 726-8520  
Support Hours  
Mon–Fri, 9:00 am–5:00 pm PST/PDT  
*Please have your order invoice and order ID  
ready before contacting Customer Support.  
The energy efficiency of this ENERGY STAR certified model  
is measured based on a ratio between the model’s CADR for  
Smoke and the electrical energy it consumes, or CADR/Watt.  
ATTRIBUTIONS  
Amazon, Alexa, and all related logos are trademarks of Amazon.com, Inc. or its affiliates.  
Google, Android, and Google Play are trademarks of Google LLC.  
App Store® is a trademark of Apple Inc.  
Wi-Fi® is a registered trademark of Wi-Fi Alliance®.  
iOS is a registered trademark of Cisco Systems, Inc. and/or its affiliates in the United States and  
certain other countries.  
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and  
any use of such marks by Arovast Corporation is under license. Other trademarks and trade names  
are those of their respective owners.  
20  
NOTES  
NOTES  
/LEVOITLIFESTYLE  
/LEVOIT  
/LEVOIT  
/LEVOIT  
LEVOIT.COM  
OW050721CW-M1.1_0321Core400S  

Xerox Workcentre 7428 User Manual
Snapper Car Ms5053 User Manual
Sears 20071211 User Manual
Philips Scb5650nb User Manual
Panasonic Kx Fl501 User Manual
KENWOOD KR 897 User Manual
HP 8753E User Manual
CYBERPOWER PDU81001 User Manual
ASUS VG278HE User Manual
ASUS U3000C User Manual