Knowledge

1. Protective glasses against solid debris, mainly used to prevent mechanical damage to eyes caused by metal or gravel debris. The lens and frame shall be of strong structure and resistant to impact.

Ordinary optical glass mirror The lenses are made of ordinary optical glass to prevent the mechanical damage of turners, grinders, milling workers, drillers, boring workers, riveters, sand cleaners, m

Protective glasses are an important part of personal protective equipment, which can be divided into ordinary protective glasses and special protective glasses according to the use function. Protectiv

So what are the hazards of wearing a mask for a long time? 1. Strikes on the face I believe that many people have seen that during the epidemic, medical staff in Wuhan, after wearing masks for a long

Wearing a mask when traveling at low temperatures can have a good warming effect for patients with rhinitis and asthma.

The protective effect of ordinary medical masks on pathogenic microorganisms is inaccurate, and it can be used for one-time hygiene care or pathogenic microorganisms in ordinary environments

Nowadays, many people wear medical masks on the street. Why does this happen? It turns out that because the air quality is gradually getting worse

After removing the mask, do not jam it. Fold the mask from the outside to the inside. Be careful not to let your hands touch the inside of the mask when folding it.

As air pollution becomes more and more serious, protective masks are emerging in the market, and there are various types of protective masks.

The level of the dust blocking efficiency of the mask is based on its blocking efficiency for fine dust, especially for respiratory dust below 2.5 microns.