Based on 10 r/BuyItForLife mentions

Airmega 400 HEPA Air Purifier

$629.99

Coway

The Coway Airmega 400 model features smart mode (auto, sleep, eco) and real-time air quality monitoring, so you can rest assured that your air is being cleaned at all times. The Coway Airmega 400 is designed to accommodate room sizes up to 1,560 square feet and it cleans the air two times in one hour. Coway Airmega draws contaminated air from two sides and pushes filtered air out the top of the unit, cleaning the air you breathe faster and more efficiently. The air filter indicator tells you when the two Max2 filters need to be replaced, and the pre-filters need to be cleaned for maximum efficiency, based on how much air they have processed. The easy-to-clean pre-filter captures large partic…

Reddit mentions

  • “Is your apartment a condo, or is it in a house and share an HVAC/air handling system with the unit causing the problems? If you are in a condo apartment, new weatherstripping…”
  • “Is it coming from outside, or like seeping through the walls from other apartments? I moved into an older apartment a few years ago and was getting a lot of cigarette smoke coming…”
  • “Smart Air Blast MKII or Blast Mini, Coway Airmega 400.”
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Product details
Coverage Area
3,120 ft² (in 60 mins)
Air Purification Type
HEPA
CADR Rating
400 (Pollen)
Automatic Shutoff
Yes
Timer
Yes
Filter Type
HEPA, Washable Pre-Filter
HEPA Filter
Yes
Odor Absorbing
Yes
Permanent Filter
No
Filter Highlights
HEPA Filter
App Control
No
Depth
14.8 in
Height
22.8 in
Weight
24.7 lbs
Width
14.8 in
Noise Level
22~52 dB(A)
Functionality Type
Air Purifier
Speed Settings
4
Modes
Auto mode
Functionality Highlights
With Timer
Color
White
Portability
Yes (has handles), No
Shape
Tower
Design Highlights
With Digital Display
Air Quality Sensor
Yes
Certified By
Energy Star
Technology Type
Smart Technology
Digital Display
Yes
Touchscreen
Yes
Display Highlights
Digital display
Nightlight
Yes
Suitable Space
Open office spaces
Suitable Use
Air purification
Age Range
Adult
Suitable For Use In
Rooms, Office spaces
Suitable User
Loved one who suffers from allergies, asthma, dust, and other allergens, Anyone, Family member with asthma, allergies, smoke, odors, and dust
For Commercial Use
Yes
Top Use Cases
Living room
Typical Users
Allergy sufferers
Energy Efficiency
Energy Star certified
Power Type
Corded
Voltage
110 V
Wattage
66 W
Highlighted Features
Timer
Recommended Location
Room
Mounting Type
Floor standing
Sustainability Certifications
CARB Compliant