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Wearing a mask is an important measure to prevent the spread of the virus and prevent infection. Due to the different types of masks, different groups of users, and different use environments, it i...

As medical workers, medical masks are indispensable two-way protective equipment. Before medical operation, medical masks must be worn, and even medical masks should be worn when ward rounds are re...

There are many kinds of masks. How to choose? Zhang Yucheng, Department of disinfection, Institute of infectious disease control and prevention of the Municipal Center for Disease Control and preve...

1. How to choose the right mask? The first choice is medical surgical mask or medical protective mask. Droplets produced during coughing, speaking and sneezing are important carriers of acute respi...

The difference and function of the three commonly used masks, medical masks, medical surgical masks, and protective masks. Medical masks This is the most secretly purchased mask. It is useful for b...

There are many kinds of masks, how to choose? Zhang Yucheng of the Disinfection Department of the Infectious Disease Prevention and Control Institute of the Municipal Center for Disease Control and...

According to the WHO, some regions may require children 5 years of age and under to wear masks, and in special circumstances such as close contact with sick people, it may also be necessary for chi...

People often say that the N95 type mask refers to a mask with a protection level of N95, that is, under the testing conditions specified in the NIOSH standard, the mask filter material is resistant...

The origin of masks The earliest "mask-like objects" in historical records appeared in the 6th century BC. The ancient Persians used cloth to cover their faces during religious ceremonies...

The old-fashioned gauze mask is made by stacking the gauze layer by layer, and is relatively thick. The current masks are made relatively thin. After the outbreak, masks are in short supply everywh...