(as of May 22,2020 04:36:13 UTC – Details)
Easy Breathing: the dust-mask has excellent permeability, exhales, the valve opens without resistance, double breathing valve, the air resistance is smaller, soft breathing.
Lightweight: the light air-mask is comfortable, breathable and good for use in hot climates, the dust-mask is made of nylon that offers excellent permeability.
Unlike those disposable masks that can only be used one time, you can wash and clean reusable mask once it accumulates dirt.
Hanging ear design Elastic strap: high elastic straps and the auditory cord fit better to the face.
The carbon filter are designed to filter out at least 95% of particulates larger than 0.3 microns in diameter.