Difference between medical protective mask and N95 mask

Do you know the difference between medical protective mask and N95 mask? Let's let the small series of medical protective masks come to understand with you:

Generally speaking, N95 mask is not equal to medical protective mask.

N95 mask only indicates that N95 filter material is used, and the filtration efficiency of non oily dust particles meets the requirements of N95, which is not necessarily a medical protective mask. The National Institute of occupational health (NIOSH) classifies respirators into three series: n, P and R type respirators according to the filter materials. Each series of respirators can be divided into three levels according to the filtration efficiency: 95.

0%、99。 0%、99。 97% (referred to as 95, 99, 100), a total of 9 categories of filter media. N means that its material is only suitable for filtering non oily dust; 95 means that its filtration efficiency is at least 95. 0%。

From the CDC website of the United States, we can see that 3M company produces more than ten kinds of N95 masks, but only 1860 and 9132 are medical protective masks.

During the period of SARS, the N95 masks reserved and used by many medical and health institutions in China were actually white 8210 models, which were used for occupational dust protection, not medical protective masks.

Medical protective mask means that the filtering effect of the mask should meet the requirements of N95 (for non oily 0. The filtration efficiency of 3 nm particles should not be less than 95%. Meanwhile, it should have the medical protection requirements such as surface moisture resistance and synthetic blood blocking performance. At present, the standard of medical protective masks in China is GB 19083-2010. The standard specifies the appearance, size, nose clip, filtration efficiency, airflow resistance, synthetic blood penetration barrier, surface moisture resistance, flame retardancy, skin irritation, identification and other properties of medical protective masks. The medical protective masks are divided into three grades according to the filtration efficiency of non oily particles.

The corresponding levels are: Level 1: filtration efficiency & amp; 95%, level 2: filtration efficiency & amp; gt; 99%, and level 3: filtration efficiency & amp; gt; 99. 97%。

To sum up, N95 mask only refers to the mask with 95% filtration efficiency for non oily particles. There are different types of masks, which are suitable for dust protection and medical protection respectively. The medical protective mask not only meets the requirements of 95% filtration efficiency of non oily particles, but also has the requirements of synthetic blood barrier performance and surface moisture resistance, that is, it can prevent blood and body fluid from spraying, which is suitable for occupational protection of medical personnel in medical environment.

The above is the difference between medical protective mask and N95 mask, hope to help you!