TERMINIX Professional-Grade Ultimate Bed Bug Box Spring Protector - 6-Sided Water-Resistant Zippered Encasement - Blocks Dust Mites & Insects - Full Size Bed Bug & Allergen Barrier Polyester Fabric TERMINIX&#174; Premium quality 6-sided cover provides maximum protection with lasting durability. Guaranteed to block bed bugs, dust mites, and insects Laboratory certified, Entomologist tested, Lifetime Warranty. Bed bug protection Hypoallergenic allergen barrier, bedbug blocking, water resistant. Dust mite protection Snug fitting, Easy on, easy off zipper encasement - Fits box springs up to 11" deep Machine washable and stain-resistant