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The difference between medical masks and N95 masks
Medical mask and N95 mask fabric introduction
The N95 mask is one of nine anti-particulate masks certified by NIOSH (National Institute of Occupational Safety and Health). "N" means unsuitable for oily particles (the oil fume produced by cooking is oily particles, and the droplets produced by people speaking or coughing are not oily). "95" means that under the detection conditions specified by the NIOSH standard, the filtration efficiency reaches 95%. The mask is often used for occupational respiratory protection, including certain microbial particles (such as viruses, bacteria, molds, etc.). Its biggest feature is that it can prevent droplet infection caused by patient's body fluid or blood splash. The U.S. Occupational Safety and Health Administration (OSHA) requires medical institutions that medical workers exposed to tuberculosis bacteria must wear masks whose standard is higher than N95.
N95 mask is a mask with a breathing valve. The function of the breathing valve is to help you feel more comfortable when exhaling in a hot and humid or poorly ventilated or labor-intensive work environment. Use time: It depends on the personal use situation and environment, but when it is found that breathing is difficult or uncomfortable, the mask is contaminated, such as blood stains or droplets, etc., the user feels that the breathing resistance is increased, and the mask is damaged, etc., it should be replaced immediately.
At present, medical masks are mainly divided into three types: medical masks with the highest protection level, medical surgical masks commonly used in operating environments such as operating rooms, and ordinary disposable medical masks.
From the point of view of mask materials, polypropylene high melting is the best choice for non-woven fabrics. Production of polypropylene products with a melt mass flow rate of 33-41g / min meets the polypropylene non-woven fabric standard.
From the perspective of fiber application, polypropylene fiber special materials are used in non-woven fabrics, clothing fabrics, carpet yarns, medical surgical supplies, and civilian sanitary products.
In terms of medical and health, non-woven fabrics made of polypropylene non-woven fabrics can be used in disposable surgical gowns, sheets, masks, covers, liquid absorption pads, and so on. Non-woven masks are made of two layers of fiber non-woven fabrics, which are professionally used for medical treatment, and an additional layer of filter-solubilized spray-resistant cloth with 99.999% anti-bacteria is added by ultrasonic welding. Non-woven masks are made of environmentally friendly plastic strips at the bridge of the nose. They do not contain any metal. They are breathable and comfortable.