100pcs Breathing Valve Filter Replacement Respirator for Face Mask Black

Description:

Item Name: Breathing valve
Made of ABS material, durable to use.
Mask accessories which should be used with mouth masks (not included).
Suitable for sports masks, running masks, active carbon masks, etc.
Features: Replacement, Anti Haze, Mask Accessories

Specification:

Material: Plastic
Inner Diameter: 27mm/1.06 inch
Silicone Gasket: 24mm/0.94 inch

Package Includes:

100 Pieces Breathing Valves