KN95 mask is the domestic mask standard. The non-oily filter that meets the national standard reaches more than 95% of the standard. It is the KN95 mask. Some people know that the N95 mask is the American standard and the filter is greater than 95%. 1. What type of mask should be used for the curren... read more
Precaution 1. The wearing method should be correct. When wearing a mask, try to tighten the elastic band of the mask and compress the aluminum sheets on both sides of the nose to reduce leakage around it. It is best to breathe slowly. 2. The wearing area should be appropriate. Do not wear a mask in ... read more
1. Dust blocking efficiency of masks The dust blocking efficiency of a mask is based on its blocking efficiency for fine dust, especially for respirable dust below 5μm. 2. The closeness of the mask to the shape of the face When the shape of the mask is not close to the face, the dangerous objects in... read more
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
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