Bodyguard N95 + PM2.7 Anti-Microbial Reusable Face Mask with Replaceable Filters is designed to provide quality as well as reliable respiratory protection from dust, odours, pollen, toxins and PM 2.7 particles. It comprises of two replaceable filters, which increase its effectiveness in filtration of particles. It employs fabric treated with anti-microbial formulation and avoids causing sweat or odour, which makes it perfect for prolonged usage. Moreover, the mask has six layers and can be washed and reused. However, its efficiency, that is, anti-bacterial treatment, lasts for up to 20 wash cycles