Mould and Mildew can be dangerous when it accumulates in your sleep environment. PureCare® allows you to keep the moisture out with waterproof mattress protectors, mattress encasements and pillow protectors. PureCare carries a class one medical device rating (in the USA) on their mattress and pillow protectors, including our OmniGuard® Advance and PureCare mattress and pillow protectors, to ensure that their products are completely moisture and waterproof. PureCare's OmniGuard® Advance fabric provides a “single micron” barrier that protects your mattress and pillow from moisture that could enter and trigger the growth of mold and mildew. MiteTight® Seams ensure that moisture can not pass through the seams of PureCare's mattress and pillow protectors, and locking zippers on all mattress encasements and pillow protectors keep the moisture out. Experience Comfort and Health. Redefined® with PureCare mattress and pillow protectors.