How long can kn95 masks last? Can it be used again after disinfection with alcohol?
TIME:2020-08-05 11:34:27 WRITER:佚名 SOURCE:Marvel Technology
1. Whether it is medical surgical masks, N95 medical protective masks, or KN95 masks, they are all disposable. So far, there is no authoritative guide that says that disposable masks can be used again after repeated high temperature or alcohol disinfection.

2. Everyone should be clear: The mask is composed of a superfine fiber meltblown nonwoven process and a fiber mesh structure with random fiber distribution and interlayer arrangement to form a multi-bend channel. This structure has a high barrier rate and strong adsorption. Ability to absorb and block viruses and other micro particles. If we use a hair dryer to blow directly at high temperature, hot water soaking, steaming, microwave heating, spray alcohol disinfectant, ultraviolet light irradiation, etc., it will destroy the fiber network structure of the mask. Once the fiber network structure is damaged, it will reach Without the effect of adsorbing and blocking viruses, this mask, whether to wear or not, has no meaning.

In dense places or in contact with suspected patients, and the web structure of the mask is not physically damaged, medical surgical masks, N95 or KN95 masks can be used to extend the use time, but the protective effect of the mask will follow The use time gradually decreases, and everyone can change the mask according to the situation.


1. When putting on and taking off the mask, make sure that your hands are clean.

2. Avoid touching the inside of the mask to avoid contamination of the mask.

3. The mask should be placed in a clean, dry and ventilated place.

4. If it is found that the respiratory impedance has increased significantly, the mask is damaged, or the mask can no longer fit the face, the mask should be replaced in time to avoid increasing the risk of infection.


KN95 Face Mask

Disposable face mask

Hand Sanitizer Dispensers

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