- 【High-quality materials】: Made of activated carbon and non-woven melt-blown filter cloth, 5 layers filter system effectively keep away from PM2.5 and a range of airborne contaminants.
- 【Size】: Carbon filters size measures approx. 4.72'' x 3.1'', compatible with most dust masks, easy to insert or replace the original one.
- 【Easy to use】: just put it in the mask opening. 1. Filter insert can not be cleaned and should be replaced every week. 2. When film or sticky sediment stains emerge, please replace the filter.
- 【Solve your shortage】: Just change the paper once a day.
- 【Activated Carbon Filters】100% brand new and high quality. It's compatible with majority of Masks available in the market. Please contact us if you need any assistance.