N95 type mask, is one of the 9 types of NIOSH (National Institute for Occupational Safety and Health) certified anti-particulate masks. "N" means not suitable for oily particles (fumes from stir-frying are oily particles, while droplets from people talking or coughing are not oily); "95" means that, under the testing conditions specified in the NIOSH standard, the filtration efficiency reaches 95%. N95 is not a specific product name. As long as the product meets the N95 standard and passes the NIOSH review, it can be called "N95 type mask".
Basic introduction Chinese name ：N95 type mask Certification body ：NIOSH type ：with respiratory valve mask Filtration rate ：over 95% Product introduction, safety standards, precautions, medical protection, the choice of masks, performance limitations, a wide range of uses, the purchase of the boom, expert advice, Product Introduction "N95 " is a standard set by the National Institute for Occupational Safety and Health (NIOSH), a division of the U.S. CDC, and is not a specific product name. As long as the N95 standard, and through the NIOSH review of the product can be called "N95 type mask". Of the nine standards set by NIOSH, N95 is the lowest standard for infection protection, and is inexpensive and easy to be adopted by healthcare organizations, etc. N95 masks are used for occupational respiratory protection, including certain microbial particles (e.g., viruses, bacteria, molds, bacillus anthracis, mycobacterium tuberculosis, etc.). The most important feature of N95 masks is that they can prevent droplet infections caused by patient body fluids or blood splashes. Droplets are 1 to 5 microns in diameter. The U.S. Occupational Safety and Health Administration (OSHA) for health care organizations, exposed to tuberculosis bacteria, medical staff must wear a mask N95 standard or higher. Safety Standards N95 masks are one of nine standards established by NIOSH in 1995. The "N" stands for "not resistant to oil". "95" means that the concentration of particles inside the mask is 95% lower than the concentration of particles outside the mask when exposed to a specified number of specialized test particles. The 95% value is not an average value, but a minimum value. Other NIOSH-approved antiparticle masks include: N99, N100, R95, R99, R100, P95, P99, P100, all of which cover the range of N95, with "R" being suitable for oily or non-oily particles, and, if used for oily particle protection, should be used for no more than 8 hours. R" means that it is suitable for oily or non-oily particles, if it is used for oily particles, the use time should not exceed 8 hours; "P" means that it is suitable for oily or non-oily particles, if it is used for oily particles, the use time should follow the manufacturer's recommendations. 99" and "100" refer to the level of filtration efficiency, respectively. They are categorized as "N", "R" and "P" according to oil resistance and "95" according to capture rate, "N", "R" and "P" for oil resistance, and "95", "99" and "100" for capture rate. R" stands for "resistant to oil" and "P" stands for "oil proof". "99" in the capture rate means more than 99%, and "100" means more than 99.7%. In addition, when the N100, P100 and R100 masks are tested with 0.3 micron particles, the blocking efficiency must be over 99.7%, the filtration rate of N99, P99 and R99 is over 99%, and the filtration rate of N95, P95 and R95 is over 95%. Therefore, the N95 mask is tested with 0.3 micron sodium chloride particles, and the blocking rate must be more than 95%, and when tested by the wearer's face tightness, it is ensured that the air can come in and out of the mask through the mask under the condition of close to the edge of the face. Only those that meet this test are issued with N95 certification number. Generally speaking, the protective masks certified by the existing domestic standards can not reach the N95 level standard. Note: N95 type masks are masks with breathing valves. The function of breathing valves is that in hot and humid or poorly ventilated or laborious working environments, the use of masks with breathing valves can help you feel more comfortable when exhaling. Time of use: Depends on individual use and environment, but when you find difficulty or discomfort in breathing, the mask is contaminated with foreign matter such as blood stains or droplets, the user feels that the resistance to breathing has become greater, and the mask is damaged, etc., you should replace it immediately. Zhejiang Hospital of Traditional Chinese Medicine infection management section chief Yu Hangying suggested that the general public do not blindly wear professional protective masks, "like wearing this professional protective masks, is to be trained, if you do not understand this knowledge, it is best not to wear at will." Chief Yu reminded: "Patients with cardiovascular disease, do not wear 3M masks, especially the N95 model, because this mask is a professional anti-virus, the texture is very thick, the patient is easy to wear it after the respiratory difficulties, due to lack of oxygen and feel dizzy." Only patients who have been clearly diagnosed need to wear professional masks. And if ordinary citizens wear masks, it is best to choose the more breathable ones. Medical protection During the SARS outbreak in 2003, the World Health Organization (WHO) and the U.S. Centers for Disease Control and Prevention (CDC) issued precautionary measures for the care of patients with SARS, recommending that exposure to air should be reduced in order to reduce the chances of airborne droplet infections, which is particularly recommended to meet the U.S. National Institute for Occupational Safety and Health (NIOSH). In particular, the use of protective masks that meet the National Institute for Occupational Safety and Health (NIOSH) N95 certification is recommended. In the fight against Influenza A (HIN1), N95 masks have also become a must-have for healthcare workers and a recommended protective product for the public. May 19, 2009, China's disease control experts Zhong Nanshan in an interview with the media that ordinary masks on the prevention of influenza A is not very useful. Zhong Nanshan said: "If there is a cold and fever, wearing a mask when sneezing to prevent the spread of a block, may also be a little useful. Overall ordinary masks are useless, prevention, if you want to wear N92-type masks (should be N95-type masks)." Mask selection 1, choose the appropriate mask varieties (1) medical protective masks should be used as the first choice of medical workers, ordinary skim gauze masks should be used as the first choice of ordinary citizens in their daily lives. On special occasions, such as medical consultations and visiting patients, the general public is also best to use medical masks. (2) The materials used in masks should be odorless and harmless to the human body, especially the human face contact part of the material, there should be no *** sex and allergies. 2, choose qualified masks In the selection of masks, to see whether the packaging is a trade name, there is no manufacturer or supplier information, whether there is a mask certificate or instructions for use. Disposable masks should also have a disposable indication, for reuse of medical protective masks should also indicate the sterilization method. Generally speaking, ordinary gauze masks should indicate whether the ordinary level or sterilization level. 3, choose the regular manufacturers to prevent influenza we choose more common skim gauze masks or medical protective masks, which need to be legally operated medical stores outlets to buy or to have a health license or medical device registration certificate of the manufacturer to buy. 4, choose the mask do not forget to check the appearance of this is our choice of masks when it is easy to ignore the problem, first of all, we should check whether the packaging of the mask is complete, there is no damage. The surface of the mask shall not have holes, stains. Medical protective masks should not have an exhalation valve. For the closed arch mask horizontal diameter is not less than 14cm, longitudinal diameter is not less than 14cm; medical protection rectangular mask length is not less than 17cm, width is not less than 17cm; ordinary skim gauze mask unfolded length is not less than 17cm, width is not less than 13cm, the number of layers should not be less than 12 layers. Another reminder is that if you choose to use medical masks, remember that they must be equipped with nose clips, which are made of bendable plastic material and are not less than 8.5cm in length. Limitations of performance Respiratory infectious diseases are not only transmitted through the respiratory tract; Preventive measures should be taken prior to exposure; Masks with a close-fitting structure and high-efficiency filtration will increase respiratory resistance and reduce the sense of comfort; Suitability - Mask design If it does not fit the shape of the user's face, it will cause leakage; Protective masks can reduce the concentration of harmful substances by 90% when the requirements for fit and proper use are met. *** No safe exposure limits have been established for pathogenic microorganisms and respiratory protection only reduces the risk of illness but does not eliminate it. Wide range of uses For respiratory protection against certain particulate matter, such as dust from sanding, sweeping and handling of minerals, flour and certain other materials, and also for liquid or non-oily particulate matter from spraying that does not produce noxious volatile gases. It effectively filters and purifies inhaled abnormal odors (except toxic gases). This product may help reduce exposure levels to certain respirable microbial particulate matter (e.g., mold, Bacillus anthracis, Mycobacterium tuberculosis, etc.), but does not eliminate the risk of exposure to infection, illness, or death. Buying Boom In 2015, the Korean public began to pay attention to the N95 mask and started to buy it after the message "Wearing N95 masks can prevent Middle East Respiratory Syndrome (MERS)" was posted online in Korea. The Korean Medical Association said in the code of infection prevention for medical personnel, in the diagnosis of MERS suspected patients, medical personnel should wear N95-grade respirator masks, gloves and disposable goggles and other protective equipment. The N95 mask, it is understood, is one of nine types of particulate matter-resistant masks certified by the U.S. National Institute for Occupational Safety and Health (NIOSH). N" means not suitable for oily particles, "95" means in the NIOSH standard test conditions, the filtration efficiency of 95%. N95 is not a specific product name, as long as it meets the N95 standard, and through the NIOSH review of the product can be called "N95". As long as the product meets the N95 standard and passes the NIOSH review, it can be called "N95 mask". In addition, sales of hygiene products such as masks and hand sanitizers have surged in South Korea as concerns about the spread of the Middle East Respiratory Syndrome (MERS) epidemic continue to spread. South Korea's leading e-commerce company G-Market said on June 2 that sales of personal hygiene products surged from May 20 to June 1 compared to the same period in 2014, with sales of masks up 140 percent and hand sanitizers up 214 percent compared to the same period in 2014, the company said. E-commerce company Inter Park said sales of both masks and hand sanitizers were up compared to May 2014, with increases of 49 percent and 72 percent, respectively. 11 merchants also said hygiene product sales were up 100 percent from the previous week, with sales of masks up 104 percent and hand sanitizers up 119 percent. Expert advice Online hot N95 masks, tested filtering effect can reach 95%, the effect of PM2.5 protection should be the best. But for N95 masks, doctors do not recommend ordinary people to wear: "theoretically speaking, the more airtight the protective material of the mask, the better the effect of blocking particulate matter. On the other hand, the more airtight the mask, the more difficult to breathe, wear a bad may also be due to lack of oxygen and lead to dizziness. Wear N95 this kind of professional protective mask, easy to cause breathing difficulties, especially for cardiovascular disease and other patients, be more cautious." N95 mask It is understood that, relative to the N95 mask, negative ion mask is more suitable for ordinary people. Of course wear whether to feel comfortable is also different from person to person. Note that disposable medical masks have a minimal effect on blocking PM, and are not recommended. Wearing a mask is important Cleanliness and hygiene are most important .