[Product model]: flat (ear hook)
[We have certifications]: FDA/CE
[Scope of application]: it is suitable for the user to wear it during non-invasive operation, covering user’s mouth, nose and jaw, providing a certain physical barrier to prevent the direct penetration of microorganisms and particles.
[Method of use]:
1. Check whether the package is in good condition before use, and confirm the expiry date of the product;
2. Open the package and take out the mask. The upper part of the nose clip is with the color face facing out, press the nose clip to minimize the gap between the face and the mask;
3. Avoid touching the mask when using. After touching the used mask, wash hands with cleaning and disinfection supplies;
4. Change into a new clean and dry mask after the mask is damp.
[Period of validity]: two years
[Authentication level]: II
Conditions of Use
There are various types of disposable dust masks, which must be selected according to different operating needs and working conditions.
First of all, it should be selected according to the dust concentration and toxicity. According to GB / T18664 “Respiratory protective equipment selection, use and maintenance”, 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 mask or protection level should be used Higher respirators.
If the particulate matter is highly toxic, carcinogenic and radioactive, the filter material with the highest filtration efficiency should be selected.
If the particulate matter is oily, be sure to select a suitable filter material.
If the particulate matter is needle-shaped fiber, such as slag wool, asbestos, glass fiber, etc., because the dust mask can not be washed, the mask with the tiny fiber stuck on the face sealing part is likely to cause facial irritation and is not suitable for use.
For high-temperature and high-humidity environments, it is more comfortable to choose a mask with an exhalation valve. A mask that can remove ozone can be used for welding to provide additional protection. However, if the ozone concentration is higher than 10 times the occupational health standard, the mask can be replaced. Poison combination filter element. For environments where there is no particulate matter, but only certain odors, it is much lighter to choose a dust mask with an activated carbon layer than a gas mask, such as some laboratory environments, but due to national standards, technical performance specifications for such masks are not .