PureCare's pillow protector completely surrounds your pillow to provide a physical barrier against bed bugs, allergens, dust mites, stains, moisture, mold, and mildew. Special design features like our AirXchange microfiltration strip provide extra breathability and airflow while keeping particulates away from your pillow. Our MiteTight seams and locking zipper ensure complete protection for new or existing pillows in your home and help you to create a cleaner, more hygenic sleep environment overall. Our clinically proven, whisper-quiet and breathable OmniGuard Advance lightweight performance fabric is specifically designed to be washed and dried on hot settings for optimal sanitization. PureCare's entire collection of mattress and pillow protectors are the official protectors of both the National Sleep Foundation and the Women's Choice Award. All PureCare protectors are treated with antimicrobial silver chloride that inhibits bacteria, mold, and mildew that causes deterioration, stains, and odors on this product.