- 5 layers of activated carbon filtering
- 20 pack of mask respirator filters recommend replace filter once a week for the best effect
- Size 12.5 cm x 8 cm / 4.93'' x 3.15'' Universal replacement for most adult mouth mask with filter slot
- PM 2.5 ideal to protect your mouth and face from Dust Haze Germs Allergies Smoke Pollution Ash Pollen Gardening
- 5 layers of activated carbon filtering
- 20 pack of mask respirator filters recommend replace filter once a week for the best effect
- Size 12.5 cm x 8 cm / 4.93'' x 3.15'' Universal replacement for most adult mouth mask with filter slot
- PM 2.5 ideal to protect your mouth and face from Dust Haze Germs Allergies Smoke Pollution Ash Pollen Gardening