Suggested Retail:$600. COLOR MAY VARY FROM STOCK PHOTO Coway Airmega 400S App-Enabled Smart Technology, Compatible with Amazon Alexa and Google Home True HEPA Air Purifier, (Covers 1,560 sq. ft.), White . 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 air mega mobile app (IOS and Android) allows you to monitor and manage air quality from almost anywhere. Room Coverage 2 air changes/hr.*: 1,560 sq. ft. (145 sq. m) 4 air changes/hr.**: 780 sq. ft. (72 sq. m). 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.