Views: 0 Author: Site Editor Publish Time: 2021-06-05 Origin: Site
There are many kinds of respirators. Let's learn about different kinds of respirators today!
The following knowledge points are listed below:
What is a disposable respirators
Classification of disposable respirators
How to choose disposable respirators
Disposable respirators are made of environmentally friendly plastic nose strips and nose clips, which can be adjusted according to different face shapes. The inner ultrasonic spot welding, the earband can be very firm and not easy to fall off.
Disposable respirators can be applied to electronic manufacturing, dust-free workshop, catering services, food processing, school, riding motorcycles, spraying processing, hardware stamping, electroplating, chemical industry, steel, welding, institutes, hand processing, hospital, cosmetic, pharmaceutical, factories, clean environment, public places such as a variety of purposes Method of use: The elastic ears are hooked on both ears, fitted with the whole nose type, and the respirator is fixed by gently pressing the fixator so that the respirator fits with the face. Product main technical indicators: carbon tetrachloride adsorption rate: >70% benzene adsorption rate: ≥15% resistance: 80% area weight: 35 ~ 45g/m2.Note: 1. Size: 9cmx17.5 2. Products.
Disposable respirators are further divided into disposable three-layer respirators, disposable non-woven respirators, disposable four-layer respirators and disposable activated carbon respirators.
The first is a two-layer respirator. Generally, the two-layer respirator is mainly used in food processing plants. There is no filter meltblown cloth in the middle, but two pieces of non-woven cloth are sewn together. Its function is mainly to prevent substances in the mouth from entering food, such as saliva, nasal spray, cold, etc., and its weight is generally about 2-4.5g.
The second is a disposable three-layer respirator. The disposable three-layer respirator is made of two layers of non-woven fabric and filter paper. The disposable three-layer respirator is made of fiber non-woven fabric specially used for medical care with two layers inside and one layer in the middle. More than 99% of the filter dissolving and spraying cloth is welded by ultrasonic wave. The nose bridge is made of an environment-friendly plastic strip, which does not contain any metal and is equipped with steam permeation, making it comfortable. Filter effect B.F.E up to 99%, especially suitable for electronic factories;
The third is a disposable four-layer activated carbon respirator, which adds another layer of activated carbon paper to the original three layers of non-woven filter paper to better improve the ability of filtering dust and bacteria. That's what you see with the gray and black face respirators. However, three layers of respirators are usually enough to wear outdoors, and four layers are also perfectly acceptable. Disposable activated carbon respirator is made of 28 grams of non-woven cloth on the surface and antibacterial filter paper on the first layer in the middle to filter and prevent 99% of bacteria. It plays an antibacterial role and prevents virus damage. The middle second layer is made of new and efficient adsorption and filtration materials - activated carbon fiber and activated carbon cloth, which has the functions of anti-poison, anti-odor, filtering bacteria and dust-blocking.
There are a variety of disposable dust respirators, which must be selected according to different operating requirements and working conditions.
The first choice should be based on the concentration and toxicity of dust. According to GB/T18664 "Selection, Use and Maintenance of Resrespiratory Protective Equipment", as a half respirator, all dust respirators are suitable for the environment where the concentration of harmful substances does not exceed 10 times the occupational exposure limit; otherwise, a full respirator or respirator with higher protection level should be used.
If the particles are highly toxic, carcinogenic and radioactive, the filter material with the highest filtration efficiency should be selected.
If the particles are oily, be sure to select the appropriate filter material.
If the particles are needle-like fibers, such as slag wool, asbestos, glass fiber, etc., the respirator can not be washed with water, and the respirator with tiny fibers attached on the sealing part of the face is likely to cause facial irritation, so it is not suitable for use.
For high temperature and high humidity environment, choose a respirator with an exhalation valve that will be more comfortable, choose respirator with ozone removal for welding can provide additional protection, but if the concentration of ozone is higher than 10 times the occupational health standard, you can replace the respirator, with dust and toxic combined filter element.For environments where there is no particulate matter but only some peculiar smell, it is much easier to choose a dust respirator with an activated carbon layer than to wear a gas respirator, such as in some laboratory environments.
Hubei Wanli protective products co., LTD., established a respirator workshop in 1998.As the market for disposable products becomes more and more diversified and integrated, Hubei Wanli is determined to meet the wider needs of global customers. We specialize in respirators, disposable face masks, disposable protective clothing and accessories for the occupational safety and healthcare industry. Welcome friends from all walks of life to visit, guidance and business negotiation!