Disposable medical masks disadvantages
Time：
Jan 07,2023
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Source：
Medin Medical tells you: compared with other fabric masks, the masks cannot be washed; they are also easier to be torn apart because their fibers are arranged in a certain direction; compared with other textile masks, the strength and durability of the masks are worse than other masks. There are various kinds of dust masks for use conditions editor, and the choice must be made for different operational needs and working conditions. First of all, it should be selected according to the concentration and toxicity of dust. According to GB/T18664 "Selection, use and maintenance of respiratory protective equipment", as a half mask, all dust masks are suitable for environments where the concentration of harmful substances does not exceed 10 times the occupational exposure limit, otherwise a full face mask or respirator with a higher level of protection should be used.
If the particulate matter is highly toxic, carcinogenic and radioactive, a filtering material with a filtration efficiency rating should be selected. If the particulate matter is oily, be sure to choose the applicable filter material. If the particulate matter is needle-like fiber, such as slag cotton, asbestos, glass fiber, etc., as the dust mask can not be washed, the mask with tiny fibers stuck to it is easy to cause facial irritation in the sealed part of the face, and is also not suitable for use.
Medin Medical tells you For high temperature, high humidity environment, choose a mask with exhalation valve will be more comfortable, Medin Medical tells you to choose a mask that can remove ozone for welding can provide additional protection, but if the ozone concentration is higher than 10 times the occupational health standard can replace the mask with a combination of dust and toxic filter elements. For environments where there are no particulate matter, but only certain odors, choose a dust mask with an activated carbon layer that is much lighter than wearing a gas mask, and Medline Medical tells you about certain laboratory environments, but because the standards do not regulate the technical performance of such masks.
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