Mask manufacturers introduce how to choose masks.


Release time:

2024-03-14

Mask manufacturers introduce how to choose masks. In order to comprehensively evaluate the actual effect of haze prevention of various masks in the market, a test was made in a simulated haze weather environment in an organization. In the test, atmospheric aerosols smaller than PM2.5 particles were used to simulate smoke and dust in an environment with a temperature of 23 ℃ and an ambient humidity of 50%.

Mask manufacturers introduce how to choose masks.

In order to comprehensively evaluate the actual effect of haze prevention of various masks in the market, a test was made in a simulated haze weather environment in an organization. In the test, atmospheric aerosols smaller than PM2.5 particles were used to simulate smoke and dust in an environment with a temperature of 23 ℃ and an ambient humidity of 50%.

In the experiment, the mask must first be sealed to prevent gas from entering. The mask is sent to a closed high-efficiency filter material tester for filtration efficiency, and a certain concentration of atmospheric aerosol is emitted from the top of the machine. "Just as water spills out of a shower, when the wind blows, there will be less fog." At this time, the sodium chloride particles in the water will digest and absorb a little water to produce atmospheric aerosols. After the cyclone containing atmospheric aerosols passes through the mask, the tester can indicate the filtration efficiency and frictional resistance of the mask to be tested.

Test data show that pure cotton masks with filter elements can filter more than 90% of atmospheric aerosols, and the filtration efficiency is only slightly lower than that of industrial antifouling masks. And the adhesion is good, the respiratory resistance is small, is a good physiological comfort can be a safety mask.

口罩生产厂家

Activated carbon masks: the weak use of caution, easy to absorb carbon particles

The advantages of activated carbon masks depend on the ability to absorb odors, and the high efficiency of safety protection for fine particles has not been significantly improved. At the same time, activated carbon itself is also a kind of particulate matter, which may be inhaled into the body by the wearer, which is often a kind of harm to the patients suffering from diffuse respiratory diseases or the infirm!

Industrial production of antifouling masks: use with caution in respiratory diseases

The filtration efficiency of industrial antifouling masks is above 90%, which has a good practical effect on safety protection of PM2.5 fine particles. In order to reduce the frictional resistance during exhalation, some are also equipped with exhalation valves.

Disposable masks: can not reasonably resist PM2.5

It is mainly used to carry out over-filtering of exhaled gas, to avoid the relationship between doctors and patients in hospital outpatient clinics, or to block dust with relatively large particle size in production workshops, but it cannot reasonably resist PM2.5 fine particles.

General sand cloth mask: cold and warm effect is more obvious

Porosity is relatively large, and the nasal cavity on both sides of the weak. According to the layer-by-layer blocking of mechanical equipment, large fine particles can be blocked, while the fine particles of PM2.5 are invalid. If you do not pay attention to environmental hygiene, pathogens will continue to grow.

Mask manufacturer: masks are not suitable for long-term wear

Experts said that healthy people in daily life and normal social development activities, do not recommend wearing masks. If you wear a mask for a long time, it will make the nasal mucosa more and more sensitive and lose the original physiological function of the nostrils.

If you need to touch patients with influenza A H1N1 virus, or stay in a crowded but unnaturally ventilated place for a long time, you should wear a mask to carry out safety protection. Elderly people with weak resistance or people with underlying diseases must pay attention to wearing masks when they go to crowded places.

Mask manufacturers have explained here today. Thank you for watching. Let's see you next time.


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