Bronchitis attack should be used immediately to avoid danger and life-threatening. The public should choose scientific protective masks to prevent …

In order to reduce the resistance during exhalation, some are also equipped with an exhalation valve.　　　　Activated charcoal masks: used by …

(7), spandex fiber: near flame: melt shrink; contact flame: melt, burn; leave flame: self-extinguishing; odor: special smell; residue characteristics: white …

He said, “Several companies have approached us. He said: ‘Medical masks are almost ineffective in filtering contaminants, which is very …

While participating in emergency Spunbond nonwoven Manufacturers, we must ensure the safety of the disease control personnel to prevent laboratory …

In autumn, the temperature difference between day and night is large, and the temperature in the second half of the …

Irritating, colorful, low-cost, and reusable. It can be decomposed within 8 years when placed indoors. But they are made of …

Masks can be divided into two KN95 respirator manufacturers: medical / non-medical. As the name implies, medical masks are mainly …