7 LAYER PROTECTION: satin breathable anti-fog face mask with replaceable 5 layered particle filter and 2 layers of antibacterial fabric protected by Sterileyes WASHABLE & COMFORTABLE: unlike adult disposable face masks you can hand wash the adjustable blue & black face covering at 40°C using household laundry detergent REPLACEABLE FILTER: filters up to 95% of non-oily particles, effective for up to 40 hours of continual use before a replacement is required - the antibacterial cloth will remain effective for the lifetime of the product HIGH FILTRATION: Class I medical device tested in accordance with EN14683:2019 has a bacterial filter efficiency of more than 98% far exceeding the 94% minimum requirement BETTER FOR THE PLANET: unlike single use face masks the ab mask can be used for up to 1 year when using replacement filters - no more dirty, unhygienic masks littering towns, cities, beaches and countryside STAY FRESH TECHNOLOGY: odour control fabric prevents the growth or odour causing bacteria so no unpleasant smells!