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The use of protective masks and answers to common questions

Update:05-03-2021
Summary:

Q: What is a dust mask?  Anti-particulate dust mask is […]

Q: What is a dust mask?
 Anti-particulate dust mask is a kind of respiratory protection equipment, the main object of protection is particulate matter. Including dust, fog, smoke and microorganisms. The particles that can enter the depths of the human lungs are very small, usually below 7 microns in size, which poses a great health hazard. It is the culprit of various types of pneumoconiosis and the main protection object of anti-particle masks.
Q: What should I pay attention to when using protective masks?
When using, avoid touching the outer surface of the mask with your hands, and do not touch the inside of the mask with dirty hands. After wearing the mask to a known polluted environment, you should immediately replace the protective mask. The default is that the mask has been contaminated. More masks should be used in safe areas.


Q: Will the dust mask be invalid if used for a long time? When should it be replaced?
As the usage time of the anti-particulate mask increases, the filtered particulates will gradually block the filter material. The filtration efficiency will usually increase and the breathing resistance will also increase. When the breathing resistance increases to the wearer's unacceptable, it should be replaced. Long-term use will also cause hygiene problems, or the threat of contagion caused by repeated use of contaminated masks. Protective masks cannot be cleaned or disinfected, otherwise the filtration efficiency will decrease. If you have been in contact with an infectious environment or found damaged parts, such as missing nose clips, broken headbands, or broken masks, you should replace them immediately.
Q: Can disposable protective masks be cleaned?
 You should not try to clean the filter element of the respirator at any time. The filter element of the protective mask is itself. The so-called disposable mask is disposable and has no value for reuse.
Q: The suitability of anti-particulate masks?
Dust masks are not alone to see whether the masks really play a protective role. Another important selection factor is suitability. No mask is designed to fit everyone's face shape. The current certification and testing of anti-particulate masks does not guarantee that the mask is suitable for each specific user. If there is a leak, air pollutants will enter the breathing area from the leak, so unsuitable masks cannot provide effective protection.

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