Bodyguard mask provides you 99 percent filtration capacity of pollution particle up to pm 2. 5 Approved by en149 standard of European and ffp3 technology offers the highest level of wearer protection, The product is not washable Activated carbon arrests vocs, as well as bad odour and provides fresh air for easy breathing, Stretchable : No Extra protection of activated carbon also helps to protect lungs against certain airborne contaminants Smart valve fitted on the mask provides seamless outflow of exhaled air