Plug In Air Ionizers - Negative Ion Technology Air Purifier - Quiet Operation Air Freshener for Home, Bedroom, Office, Garage Room - Portable Air Purifiers Odor,Pets Smell - Air Cleaner White (4 Pack) is a Heating Cooling & Air Quality option for everyday use, business supply needs, resale shelves, or household stocking. Review product size, pack count, and shipping details before checkout.