Wide applications: Activated Carbon Filter anti airborne particles dust, smoke, pollution, ash, gardening pollen and so on, suitable for most occasions.
Five layers Filter Material:
2 pk Activated Carbon
Easy To Use – just put it in the PM2.5 filter opening.
We suggest: change the filter for every 3 days.
Filters size: 12x 8 cm/ 4.8 x 3.15 inches.