Home Slickdeals Coway Airmega 400 Smart Air Purifier with 1,560 sq. ft. Coverage $310.67 Slickdeals Coway Airmega 400 Smart Air Purifier with 1,560 sq. ft. Coverage $310.67 By ARCOM - 25 November 2019 122 0 SHARE Facebook Twitter Go to the deal page: Coway Airmega 400 Smart Air Purifier with 1,560 sq. ft. Coverage $310.67