100 Pack PM 2.5 Activated Carbon Filters for Adults, Replaceable Anti-Fog Face Filter

Package contains 100 replacement filters, for use only with your fabric coverWe recommend replacing at least one activated carbon filter per day to ensure health and safety.Easy to use: simply drop into the filter opening.1. The filter insert is not cleanable and must be replaced daily.2. If film-forming or sticky deposits appear, replace the filter.High-quality material: Made of activated carbon and melt-blown non-woven filter cloth, the 5-layer filtration system can effectively keep away air pollutants.Size measurement: The size of the carbon filter is about 12*8cm, compatible with most dusts, easy to insert or replace the original filter.