Given the seal of approval from the British Allergy Foundation, this Fogarty anti-allergy mattress protector is dust mite resistant and prevents the growth of bacteria. This protector features a microfibre cover for ultimate comfort, has an elasticated rim with a depth of 30cm for added security, and is machine washable for easy care. Treated with an active biocide Dimethyloctadecyl [3-trimethoxysilyl) proy]ammonium chloride.