Made in China
Air mega is a connected air purifier, that intelligently, effectively and quietly cleans the air in your home
Its dual filtration system removes 99.97percent of particulate matter from the air
removes up to 99.97percent

 
 Coway Airmega 400 Smart Air Purifier with 1,560 sq. ft. Coverage
p>The most advanced air purifier developed by Coway. Air mega is a connected air purifier, that intelligently, effectively and quietly cleans the air in your home. Its dual-filtration system removes 99.97percent of particulate matter from the air, while the accompanying pollution indicator allows you to monitor and manage air quality real-time.The coverage area of the Coway Airmega reflects the size of the area in which the air purifier can make two air changes per hour. “Air changes per hour” reflects how many times your Coway Airmega can clean a given area in one hour, assuming the ceiling height is eight feet 
Room Coverage
 2 air changes/hr.* - 1,560 sq. ft. (145 sq. m) 4 air changes/hr.** - 780 sq. ft. (72 sq. m) 
AIRMEGA Max 2 Air Purifier Replacement Filter Set for 400/400S
A unique all-in one filtration system that combines green true HEPA filter technology with an activated-carbon filter (removes up to 99.97percent ).