MATERIA-- Made of durable ABS.
SIZE-- Approx 1.5 inch x 1.4 inch/4 x 3.5cm, only 4g.
BROAD COMPATIBILITY-- Applicable to most kind of double air breathing valve mask, especially suit for dustproof mask.
HOE TO USE-- 1. Open the mask to expose the interior of the filter valve. 2. According to the OPEN directions on the valve, turn the valve counter(clockwise), to separate the valve. Remove the filter. 3. Replace the new filter, reverse the above steps, clockwise rotation of the valve, over.
The mask valves made of durable ABS, suitable for install in general double air breathing valve activated carbon dust mask,
can isolate most dust, chemicals, particulates, gas, pollen, smoke and fumes.
Smooth breathing: Unique ventilation design, excellent permeability, double air breathing valve, air resistance is smaller, smooth breathing.
For use with mask for anti-dust, anti-vehicle exhaust, anti PM2.5 and haze day protection. It is suitable for cycling, running, biking, hiking, skiing and other outdoor activities.
24 x mask valves
Notice: our package not include masks and filters.
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.