Original title: N95, N90, KN95, 3m.. How to choose masks in special period ？ Recently, people have paid great attention to the prevention and control of the pneumonia epidemic infected by the new coronavirus. As an important part of personal protection, wearing masks is helpful for prevention. But the choice of masks is also an important issue, I believe we all have the same doubts, what kind of masks should be chosen to be effective? I hope the following classification summary will be helpful to you: What is N95 mask? The N95 mask is one of nine NIOSH (National Institute for Occupational Safety and Health) certified particulate masks. N "means not resistant to oil." 95 "means that the particle concentration inside the mask is more than 95% lower than that outside the mask when exposed to the specified number of special test particles. The value of 95% is not an average, but a minimum. The protection grade of N95 means that under the testing conditions specified by NIOSH standard, the filtering efficiency of mask filter material to non-oily particles (such as dust, acid mist, paint mist, microorganisms, etc.) reaches 95%. N95 is not a specific product name, as long as it meets the N95 standard and passes the NIOSH review, it can be called "N95 mask". The filtering efficiency of N90 mask reaches 90%. Scope of use of N95 respirator: Protection of medical staff and related workers against airborne respiratory infectious diseases. Basic protection for medical staff or related personnel, and protection against the spread of blood, body fluids, and splashes during invasive procedures. Disposable sanitary care in an ordinary environment, or barrier or protection against particles other than microorganisms, such as pollen, etc., pathogenicity. Other NIOSH certified particulate masks include N95, N99, N100, R95, R99,CE Certificate KN95 Mask, R100, P95, P99 and P100. These protection levels can cover the protection range of N95. "N" means not resistant to oil, suitable for non-oily particles, no time limit for use. " R "means resistant to oil, suitable for oily or non-oily particles, if used for the protection of oily particles, the use time is not more than 8 hours." "P" means oil proof, suitable for oily or non-oily particles, if used for oily particles,Full Body Disposable Coverall, the use time shall follow the manufacturer's recommendations. Expand the full text "95," "99," and "100" refer to filtration efficiency levels when tested with 0.3 micron particles. " "95" indicates that the filtration efficiency is above 95%, "99" indicates that the filtration efficiency is above 99%, and "100" indicates the filtration efficiency of above 99.7%. What is a KN95 mask? According to the performance, it is divided into KN and KP. KN is only suitable for filtering non-oily particles, while KP is suitable for filtering oily particles. KN Series: KN100: For non-oily particles above 0.075 micron, the filtration efficiency is greater than 99.97 percent KN95: For non-oily particles above 0.075 micron, the filtration efficiency is greater than 95 percent KN90: for non-oily particles above 0.075 micron, the filtration efficiency is greater than 90 percent KP Series: KP100: the filtration efficiency is greater than 99.97% for oily particles above 0.185 micron. KP95: for oily particles above 0.185 micron, the filtration efficiency is greater than 95 percent KP90: for oily particles above 0.185 micron, the filtration efficiency is greater than 90 percent Scope of use of KN90 respirator: It is mainly suitable for industries producing oily and non-oily particulate pollutants such as dust, smoke and fog of more than 0.185 microns in non-ferrous metal processing, metallurgy, iron and steel, coking, gas, organic chemical industry, food processing, Antivirus Disposable Mask with CE Certificate ,KN95 Mask with Fast Shipping, construction, decoration, petrochemical and asphalt.
Therefore, the technical requirements and test methods of KN95 masks and N95 masks are basically the same, but they belong to the standards of different countries. What is a 3m mask? "3m masks" refer to all products produced by 3m Company that can be called masks, which can be divided into three categories: medical masks, particulate protective masks and comfortable and warm masks. Each type of masks has different protective emphasis. 3m medical protective masks are divided into domestic and imported, with the protective performance of surgical mask and particulate protective masks, which are specially used in hospitals to filter particulate matter in the air and block droplets, blood, body fluids and secretions. 3m particulate protective mask is commonly known as 3m dust mask. The use of protective masks to protect the health of workers at work belongs to the category of occupational health. Particulate masks are used to reduce all kinds of harmful particles suspended in the air inhaled through the respiratory tract (from coarse dust, dust, fine dust, smoke, smoke produced by various production processes, air pollutants PM2.5, including fine pathogens). 3m masks (highly effective protection against harmful particles) beginning with 90, 93, 95, 99, 8210 and 8110s all meet the requirements of PM2.5 protection in China! But if you want to exhale smoothly, , and comply with US or EU standards, please select 8210V, 9322, 9332! To meet the requirements of the World Health Organization for influenza protection , select 9010, 8210, 8110s, 8210v, 9322, 9332! (Suitable for young children). What is a medical surgical mask? The surgical mask is a mask worn by medical staff at work. It is mainly used in medical clinics, laboratories, operating rooms and other high-demand medical environments, with relatively high safety factor and strong resistance to bacteria and viruses. Surgical mask can also be used to prevent the spread of influenza and respiratory diseases. The medical surgical mask has three layers, namely a waterproof layer, a filter layer and a comfort layer from outside to inside, and the comfort layer is a layer of gauze. To sum up and compare: From the perspective of protection capability: N95 mask ≈ KN95 mask > N90 mask > surgical mask > ordinary mask Wearing comfort: ordinary mask ≈ surgical mask > KN95 mask ≈ N95 mask. Hint The outer layer of the mask often accumulates a lot of dirt such as dust and bacteria in the outside air, while the inner layer blocks the exhaled bacteria and saliva. Therefore, the two sides can not be used alternately, otherwise the dirt on the outer layer will be inhaled into the human body when it is directly attached to the face, and become the source of infection. When the mask is not worn, it should be folded and put into a clean envelope, and the side close to the mouth and nose should be folded inward. It should not be stuffed into the pocket or hung around the neck. If the mask is wetted by exhaled heat or saliva, its ability to block germs will be greatly reduced. Therefore, it is better to prepare more masks for replacement at ordinary times, which should be changed and washed once a day. Masks should be cleaned and disinfected every day. Both gauze masks and air filter masks can be disinfected by heating. The specific measures are as follows: 1. Cleaning 。 First, gently rub the gauze mask with warm water and soap. The bowl-shaped mask can be gently brushed with a soft brush dipped in detergent, and then washed with clean water. Please note that do not rub hard, because if the warp and weft gap of the gauze is too large, it will lose the effect of preventing droplets. 2. Disinfection 。 Soak the cleaned mask in 2% peracetic acid solution for 30 minutes or boil it in boiling water for 20 minutes or steam it in a steamer for 15 minutes, and then dry it for later use. This method is suitable for gauze masks and bowl-shaped masks. 3. Check 。 Before using again, you should carefully check whether the mask and mask are still in good condition. For gauze masks and masks, you can take the light transmission inspection method, that is, take care of them in front of the lamp to see if there is any obvious light spot, and if the light transmission rate of the middle part and the edge part is consistent. If there is any doubt, you should replace them with new ones. In any case, masks and masks are generally renewed after 3 to 7 times of cleaning, and masks of particularly good quality can be cleaned 10 times.
Activated carbon adsorption mask should pay attention to regular replacement of activated carbon interlayer,Virus Prevention Mask 3 Ply with Earloop, if the activated carbon interlayer is not replaceable, it should be replaced after 7 to 14 days, this mask can not be cleaned and reused. Lightning News reporter Wang Yu reports back to Sohu to see more Responsible Editor:. zjyuan-group.com
Very informative post. Your current Website style is awesome as well! actavis for sale
you can say that alternative medicine is cheaper too and usually comes from natural sources; บาคาร่าออนไลน์
Wonderful learn, I simply passed this onto a colleague who was in search of this info. Ive you bookmarked on Digg. 토토사이트
My partner and i still can not quite think that I could often be one of those reading through the important suggestions found on your site. My family and I are truly thankful for the generosity and for giving me the advantage pursue this chosen profession path. Thanks for the important information I managed to get from your site. Packers and Movers Noida to Chennai
This is my very first time i go to here. I discovered a great number of entertaining stuff in your blog site, particularly its discussion. From your tons of feedback in your articles, I guess I am not the only one possessing each of the satisfaction here! Preserve up the great operate. 남양주출장마사지
it is always easy to find good ski resorts online, but most of them are expensive but they are great anyway` 대전출장마사지
The next time Someone said a weblog, I hope that it doesnt disappoint me just as much as this. Come on, man, I know it was my choice to read, but When i thought youd have some thing intriguing to say. All I hear is really a handful of whining about something you could fix in the event you werent too busy searching for attention. Cursus zoekmachineoptimalisatie te volgen via onze webinar
I made the mistake of reading this while getting ready for bed. I became so involved in this that I was up longer than usual. merchant service agent
Could it be okay to write several of this on my small web site only incorporate a one way link to the site? Buy Cocaine In Europe
Many thanks for the great posting. I am glad I have taken the time to see this. Honden rasgroep Gezelschapshonden Klik hier voor meer informatie
Nice post. I understand some thing more challenging on distinct blogs everyday. It will always be stimulating to read content off their writers and rehearse a specific thing there. I’d would prefer to apply certain while using content in this little blog whether you do not mind. Natually I’ll offer you a link with your internet weblog. Many thanks sharing. packers and movers in nadiad
Hello, Neat post. There’s a problem together with your site in internet explorer, would check this¡K IE nonetheless is the marketplace leader and a huge component of people will miss your excellent writing because of this problem. Prishtina Travel Aotearoa VISA
The the next time I read a blog, I’m hoping who’s doesnt disappoint me about that one. I mean, I know it was my replacement for read, but I really thought youd have some thing fascinating to talk about. All I hear is really a number of whining about something you could fix when you werent too busy searching for attention. soft skills
Your understanding really fills a need. I’ve been trying to track down this sort of article and you seriously came through. Can you believe that what you wrote pretty much exactly replicates my very own experience. podolog białystok
I think your blog is getting more and more visitors.,:”~, gosc.pl
Solid post! I honestly wasn’t aware of this. It is a relief to read because I get so disappointed when writers put no thought into their work. It is obvious that you know what you’re writing about. I’ll definitely visit again! selling credit card processors
if you want to protect the integrity of your heart, then low fat foods should be the thing to go` Water tank price in lahore
I have to say that this is really a good affecting view on this specific matter. And I’d like you to know that I’m really pleased you shared your thoughts plus knowledge and I find that i agree. I genuinely enjoy your straightforward writing plus the work you may have used with this post. A great many thanks for this solid work plus good luck with the web-site, I’m looking forward to updates in the future. Beautiful scripture images
Deference to website author , some good selective information . 메이저사이트
After study a few of the websites in your internet site now, and i also genuinely such as your strategy for blogging. I bookmarked it to my bookmark site list and you will be checking back soon. Pls check out my website likewise and make me aware what you think. Packers and Movers Chennai
I enjoy you because of your own effort on this web site. My daughter really likes engaging in investigations and it’s easy to understand why. All of us notice all of the powerful means you provide useful ideas via this web blog and therefore foster response from the others on this issue plus our girl is undoubtedly discovering a great deal. Take advantage of the rest of the new year. Your carrying out a superb job. Packers and Movers Hyderabad to Chennai Charges
can get nominated for “Tropic Thunder”, then Malkovich should get nominated for this, seriously. how to be a credit card processor
Hey there! Do you know if they make any plugins to assist with SEO? I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very good success. If you know of any please share. Appreciate it! Türkei Visum Online
Your blog is showing more interest and enthusiasm. Thank you so much. พนันบอล