PM25 filter replacements for the polyester/cotton masks and my homemade masks
suitable for the Olson Style mask that has a filter pocket facing the mouth.
- Light and breathable
- Take care to protect your health.
- Size:12x8cm/4.72in x3.15in Suit for mouth mask insided with fliter slot.
- 10 pcs mask fliters, suggest replace the fliters every week of use for the best effect.
- PM 2.5, ideal to protect your mouth and face from Dust, Haze, Allergies,Smoke,Pollution,Ash, Pollen,Gardening,Crafts.