Coway Airmega 400 Smart HEPA Air Purifier

This air purifier clean areas up to 1,560 sq. ft. within just 30 minutes. It combines a pre-filter, deodorization filter, and True HEPA Filter to eliminate 99.999% of 0.01-micron particles, such as pollen and allergens. The price drops from $460.40 to $349. Shipping is free.