A brief to Filtration Efficiency of Hospital Face Mask Alternatives

According to the passage, Filtration Efficiency of Hospital Face Mask Alternatives Available for Use During the COVID-19 Pandemic, which is published on August 12nd, a variety of n95 medical and non-medical N95 respirators, as well as the disposable surgical masks, are tested under the background of Covid-19. The following passage is the brief and to this passage.

The nominal value of n95 masks from several famous companies, such as 3M, halyard (kimberly-clark), moldex, honeywell (sperian), can reach more than 95%. And what’s more, the pink one, Halyard 46827 medical n95 duckbill masks, even ranks top owing to the 99.5% nominal value, which is far better than other masks in addition to the positive pressure air supply system mask (99.6%).

Various 3M N95 masks are under strict test this time. Regardless of the medical or non-medical ones, the ones with valve, expired, disinfected or not, the result shows that the change among those types of masks of the actual filtering capacity is very small, or we even can call them almost unaffected. Their nominal value can reach more than 95%. To be specific, the actual filtering capacity of 1870 type is a bit better tan 1860 type.

N95 masks from China show great differences in this test. Some types of Dasheng mask can reach 99.2%, while the rest of the Dasheng is relatively poor, merely 76.8%. At the bottom of the list, Guangdong Feifan holds only 53.2% nominal value.

At the end of the survey, the author shows a strange conclusion that there is still no exact evidence which reveals coronavirus infection prevention capacity of N95 is better than that of surgical masks. However, the CDC still strongly recommends N95 just because of the existence of the aerosol.

So, if you want to find some approved, genuine N95 respiratory masks, you can just click here, n95intock.