Our company has 9 automatic production lines, a full set of respiratory protection production equipment such as ink print machine, spot welding machine, professional testing equipment etc.
Views: 0 Author: Site Editor Publish Time: 2022-02-21 Origin: Site
A face mask is a type of hygienic product that is generally worn on the mouth and nose to filter the air entering the mouth and nose to block harmful gases, smells, droplets, viruses and other substances. It consists of gauze or paper and other materials.
How many kinds of face masks are there?
How do you select a face mask according to the dust-blocking efficiency?
Why do we need to change the face mask?
face mask of the N series: protection against non-oily suspended substances for an unlimited period
face mask of the R-series: protection against non-oily suspended substances and sweat oily suspended substances for eight hours
face mask of the P-series: protection against non-oily suspended substances and oily suspended substances by welding without time limit
If the carrier of certain particles is oily and these substances placed on the electrostatic fleece reduce the electrical properties and allow fine dust to penetrate, the filter material to prevent oily aerosols should be subjected to a special electrostatic treatment to avoid fine dust. Purpose of dust. Therefore, each series is divided into three stages: 95%, 99%, 99,97% (i.e. called 95, 99, 100), so there are nine types of filter materials.
The dust-blocking efficiency of the face mask is based on its blocking efficiency against fine dust, especially for respiratory dust under 2.5 micrometers. As dust of this particle size can enter directly into the pulmonary bladders, it has the greatest impact on human health. The principle of dust blocking of gauze is the mechanical filtration, i.e. when the dust collides with the gauze, some large dust particles are blocked by barrier layers in the sandpaper. Some fine dust, in particular dust of less than 2.5 micrometers, penetrate the gas masks and enter the respiratory tract. The dust-tight face mask consists of activated carbon fibre filament or fibrous filter material, and respirable dust, which is less than 2.5 micrometers, is blocked when this filter material, which plays the role of filtering the air, passes through.
The outer layer of the face mask often collects a lot of dirt, bacteria and other dirt in the outer air, while the inner layer blocks the expired bacteria and saliva. Therefore, the two sides cannot be used alternately, as otherwise the dirt contaminated by the outer layer is directly attracted. It is inhaled into the human body when it sticks to the face and becomes a source of infection. If the mask is not worn, it should be folded and placed in a clean envelope, and the side close to the nose and mouth should be folded inwards. Don't put it in your pocket and don't hang it around your neck.
Xiamen PinzTec Co., Ltd has committed itself to offering the most suitable face masks at a reasonable price and all that is necessary to meet the needs of the customer.
