Matters needing attention
Please use a disposable mask within the validity period. For one-time use only, and be destroyed after use. The package is damaged, so it is forbidden to use. Pay attention to the production date.
The disposable mask is made of two layers of 28g non-woven fabric; The nose bridge is made of environmentally-friendly plastic strip, which does not contain any metal and is breathable and comfortable, especially suitable for electronic factories and daily life.
Disposable masks (medical surgical masks) can prevent respiratory infections to some extent, but they cannot prevent smog. When purchasing, you should choose a mask clearly marked with the words "medical surgical mask" on the outer packaging.
Product characteristics
The disposable three-layer mask is made of two layers of non-woven fabrics and filter paper; The disposable three-layer mask is made of two layers of non-woven fabrics for medical care, with a layer of filter spray cloth with a filter antibacterial rate of over 99% in the middle, which is welded by ultrasonic wave. The nose of the nose is made of environmentally friendly plastic strip, which does not contain any metal and is breathable and comfortable.
The filtering effect is as high as 99%, especially suitable for electronic factories; The surface of disposable activated carbon mask is 28 grams of non-woven fabric, and the first layer in the middle is antibacterial filter paper, which plays an antibacterial role and prevents virus harm. The second layer in the middle is activated carbon fiber and activated carbon cloth, which is a new type of high-efficiency adsorption and filtration material.
It has the functions of antivirus, deodorization, bacteria filtration and dust prevention. Disposable masks use environmentally-friendly plastic nose strips and nose clips, which can be adjusted to be most comfortable according to different face types. When ultrasonic spot welding is used, the ear strap can be very firm and not easy to fall off. Disposable masks can be used in electronic manufacturing, dust-free workshops, catering services, food processing, schools, riding motorcycles and spraying processing.
Stamping hardware, electroplating, chemical industry, steel, welding site, health center, manual processing industry, hospitals, beauty salons, pharmacies, factories, clean environment, public places and other uses: elastic ear hooks are hung on both ears to match the whole nose shape, and the fixed mask is gently pressed to make it fit the face.
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Conditions of use
There are many kinds of disposable dust masks, which must be selected according to different work requirements and working conditions. First of all, we should choose according to the concentration and toxicity of dust. According to GB/T 18664 "Selection, Use and Maintenance of Respiratory Protective Articles", as half masks, all dust masks are suitable for the environment in occupational exposure limits where the concentration of harmful substances is not more than 10 times.
Otherwise, a full-face mask or a respirator with higher protection level should be used. 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, you must choose a suitable filter material. If the particulate matter is needle-like fiber, such as slag cotton, asbestos, glass fiber, etc. Dust masks cannot be washed with water.
The facial mask with fine fibers is easy to cause facial irritation in the sealed part of the face, so it is not suitable for use. For high temperature and high humidity environment, it will be more comfortable to choose a mask with an exhalation valve. Choosing a mask that can remove ozone for welding can provide additional protection. However, if the ozone concentration is higher than 10 times of the occupational health standard, you can replace the mask and combine the dust filter.
For the environment where there is no particulate matter but only some peculiar smell, it is much lighter to choose a dust mask with an activated carbon layer than to wear a gas mask, such as some laboratory environments, but the national standard does not stipulate the technical performance of such masks.
Baidu Encyclopedia-Disposable Mask