Designed to fit reusable WeCan mask.
Protection against Particulate Matter 2.5, the smallest and most dangerous form of air pollution. Lab tests show that this PM2.5 filter with a properly-fitted WeCan cloth mask can reduce airborne particulates by as much as 90%.
WeCan PM2.5 Two Replacement Filters for Mask
14 day return for unopened un damaged items -
Return postage at buyers cost - return in store for free