Features:
It can extend the life if your ma-sk.
Effectively filter harmful substances such as dust/fog/haze/exhaust.
Wide application, suitable for kinds of ma-sk.
Breathable, comfortable to wear.

Specifications:
Item type: Fliter
Material: Non-woven
Quantity: 50PCS
Package weight: 60g/2.11ounces
Package size: 170*150*50mm/6.69*5.9*1.96inches

Packing List:
50pcs*Fliters