Pair with The RunMask.
Specifically designed to fit the RunMask and improve its filtration ability further.
PM 2.5 filters can filter small particles such as moist, pollen, dust, mold, combustion particles, organic compounds, and metals.How to use:
1. Always wash your hands before handling a filter
2. Place the filter inside the RunMask's filter pocket
3. Replace the filter after 2-3 days of useThe filter can not be washed.