Pm 2.5 Filters 10 Pieces by VIRTUE CODE Replaceable for Face Masks Anti Dust

FILTRATION TECHNOLOGY: Made of activated carbon and non-woven melt-blown filter cloth, this product has a five-layer filter system to effectively keep away from PM 2.5 and a range of particles in the air. 10 IN A PACK: Don?t run out, with 10 filters in each pack. The filters are hygienically sealed in clear cellophane wrappers. We recommend changing your filter weekly. PM 2.5 Filters: Get more ...