Views:0 Author:Site Editor Publish Time: 2020-12-29 Origin:Site
N95 Mask is the lowest level requirement of the United States NIOSH (National Institute of Occupational Safety and Health) for the filtration efficiency level of American occupational anti-particulate respirators. It refers to the non-oily particulate matter (Such as dust, paint mist, acid mist, microorganisms, etc.). The filtration efficiency is at least 95%. Anti-particulate masks that have obtained the US NIOSH N95 certification are often referred to as N95 masks.
This passage is going to talk about the followings of n95 mask:
Description of N95 mask
Types and model meanings of masks
How to wear a mask and precautions？
N95 gas mask is a commonly used abbreviation for N95 filter mask gas mask. It is a particulate filter mask gas mask that meets the N95 air filtration classification of the National Institute of Occupational Safety and Health (NIOSH). Filter out at least 95% of airborne particles.
Except for air-supply masks, most of the masks we see on the market are air filtering masks. Air filter masks are mainly divided into surgical masks (medical masks) and dust masks (industrial masks). The "SARS" in 2003 made a medical protective mask called N95 all the rage in my country. What does "N95" represent here?
The National Institute of Occupational Safety and Health (NIOSH) divides the material of the middle layer of the mask into the following three types:
1. N series: N stands for Not resistant to oil, which can be used to protect non-oily suspended particles. The time limit is eight hours.
2. R series: R stands for Resistant to oil, which can be used to protect non-oily and oily suspended particles. The time limit is eight hours.
3. P series: P stands for oil Proof (oil proof), which can be used to protect non-oily and oily suspended particles without time limit.
Non-oily particles include coal dust, cement dust, acid mist, welding fumes, microorganisms, etc.; oily particles include oil mist, oil fume, coke oven fumes, etc. According to the lowest filtration efficiency of the filter material, masks can be divided into the following three levels:
1.95 grade: indicates the lowest filtration efficiency is 95%.
2.99 grade: indicates the lowest filtration efficiency of 99%.
3.100 grade: the lowest filtration efficiency is 99.97%.
Dust masks, as the name suggests, are used to block dust or exhaust gas. They cannot filter out germs. If you want to deal with all kinds of flu, we should choose to use surgical masks, because this kind of mask has a filter in the middle, which can block particles of 5 microns (1 millionth of a meter) or above.
When wearing a mask like N95, in addition to following the instructions, the most important thing is to fit the nose and face closely to prevent air from leaking along the gap between the cheek and the mask. After wearing, perform exhalation and inhalation tests to confirm that there is no leakage. N95 masks may not breathe smoothly when wearing them. Patients with breathing problems such as asthma should consult their doctors before wearing them.
N series and R series masks should be replaced immediately after continuous or cumulative use for 8 hours, and P series masks should be replaced after 40 hours or 30 days of cumulative use. However, if the mask is found to be damaged, dirty, damp or not breathing smoothly, regardless of the length of time, it should be replaced immediately and sealed in a plastic bag to avoid secondary infection. We also need to be aware that masks can only reduce risks and cannot guarantee absolute safety.
We hope this article has helped you understand more about N95 mask and types of N95 masks. If you need N95 masks, do not hesitate to contact us. Our products will be your best choice.