A clean, fresh bed is important. The Aller-Ease Hot Water Washable Pillow provides allergen barrier protection and is truly washable. The unique fiber maintains its shape and refluffs after every wash - the pillow will look brand new. The allergen barrier fabric provides protection from dust mites, allergens, pet dander, and pollen. For the cleanest clean, wash in hot water (above 120 degrees) to completely kill germs and bacteria. Third party lab tested.