H13 Shark Air Filter for Air Purifier True Hepa Filter Replacement 2 Pack HP072 HP071 Never Change Air Purifier Filter Small for Dorm Room Essentials Green is up for auction in Appliances. The current bid is $2.50, 92% below the $29.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.