1. How often do I need to change a 3M protective mask? Answer: As the use time of the anti-particulate mask increases, the filtered particulates will gradually block the filter material. The filtration efficiency will usually increase, but the breathing resistance will also increase. When the breath... read more
Q: What kind of mask can prevent smog? A: The hazards of smog mainly come from the fine particulate matter, that is, the particulate matter suspended in the air with an aerodynamic particle size less than or equal to 2.5 microns. Choose professional particulate protective masks for effective protect... read more
Disposable masks are divided into: disposable two-layer masks, disposable non-woven masks, disposable three-layer masks, and disposable activated carbon masks. 1. The disposable two-layer mask is made of two layers of 28 grams of non-woven fabric; the bridge of the nose is made of environmentally fr... read more
Wearing a mask correctly can effectively block the spread of droplets, protect yourself from being infected by others, and also an effective measure to protect others from being infected by yourself. Wearing masks for a long time will inevitably cause some "sequelae". Today we will take a look at ho... read more
Children's masks refer to masks worn by children to filter particles in the air and block microorganisms, pollen, droplets, etc. According to their performance, they can be divided into children's protective masks and children's hygiene masks. The purchase of children's masks: 1. When purchasing, yo... read more
Copyright © 2019 Zhejiang Tianzhen Industry & Trade Co,Ltd. All rights reserved. Support :HWAQ
