PM 2.5 Mask Filters - 10 pack - Adult Size - NIP

10 count of PM 2.5 Filters (Adult) This is a 10 week supply (1 filter per week - Occasional Use). These PM 2.5 adult mask filters offer 5 layers of protection (please see photos) and are compatible with the vast majority of adult-sized reusable masks with filter pockets. For occasional use it's best to replace once a week, for all day use the filters should be replaced daily. Same Day Shipping *Adult Size Filter, not compatible with children's masks Dimensions: 12cm x 8cm (4.72" X 3.15")