This Veva Large Room ProHEPA 9000 Premium Air Purifier from Veva via Amazon.com drops from $166.99 to $105.85 when you clip the coupon on the product page. It sells elsewhere for $151. Shipping is free. It has a washable pre-filter, carbon filter, and HEPA filter. It helps reduce odor, smoke, dust, mold, and more. It gets a 4.5 out of 5 star rating based on more than 3,900 ratings.