Free shipping for two regular-priced health products I know
covid-19 mask level

How to choose the best masks? Knowledge about mask level.

Since the new crown pneumonia epidemic hit Hong Kong, masks have become a part of daily life, but do you know how to classify masks? What do BFE, PFE, and VFE represent? In this article, Gogo herbs has integrated the knowledge of mask protection standards for you, let’s take a look!

What do BFE, PFE and VFE stand for?

BFE: (Bacterial Filtration Efficiency), is the bacteria filtering effect, used to measure the efficiency of the mask filtering bacteria. The test is for particles with a size of 3 microns. For example, BFE>95% means that the mask can block 95% of particles with a size larger than 3 microns.

PFE: (Particulate Filtration Efficiency), is the particle filtering effect, used to measure the efficiency of the mask to filter particles. The test is for particles with a size of 0.1 microns. For example, PFE>95% means that the mask can block 95% of particles with a size greater than 0.1 microns.

VFE: (Viral Filtration Efficiency), is the virus filtration effect, used to measure the efficiency of the mask to filter viruses. The test is for particles with a size of 0.1-5 microns (average 2.8 microns). For example, PFE>95% means that the mask can block 95% of particles larger than 2.8 microns.

Mask
Mask

National mask grade standard
American mask: ASTM Level

ASTM masks refer to masks that comply with ASTM International standards. There are three grades.

Level 1 (low protection): BFE and PFE data must exceed> 95%.
Level 2 (medium protection): BFE and PFE data must exceed> 98%.
Level 3 (high protection): BFE, PFE data must exceed> 98%, and synthetic blood penetration must exceed> 160mmHg.

European mask: EN14683

Europe uses the EN14683 classification standard, which is divided into three levels like ASTM.

Type I (low protection): BFE data needs to exceed> 95%. Type II (medium protection): BFE data must exceed> 98%. Type IIR (high protection): BFE data must exceed> 98%, and synthetic blood penetration must exceed> 120mmHg.

Japanese masks: PM2.5

Japanese masks often labeled 「PM2.5」 mask particles in the air can effectively block a size greater than 2.5 microns, for example, air pollution particulates. For example, Japanese masks that only label 「PM2.5」 or 「anti-pollen」 are mostly only for second-hand smoke, air pollution, pollen and dust particles, etc. It is recommended to choose masks with BFE, PFE, and VFE data to know whether they are effective Block bacteria and viruses.

Japan Fast Mask medical three-layer surgical mask
Japan Fast Mask medical three-layer surgical mask


Which standard mask should be used in Hong Kong?

Although bacteria and viruses are both microorganisms with small size, they usually adhere to larger size droplets when they spread. Therefore, under normal circumstances, choose BFE/PFE/VFE>95%, ASTM Level 1, which can block droplets. Masks are already effective enough to prevent new coronary pneumonia. Moreover, in the crowded environment of Hong Kong, the air permeability of masks is also an important consideration.

Do you have a better understanding of the classification of masks after reading this article? Only by knowing the standard of mask protection can you choose a mask that suits you.

Click here to buy masks made in Sweden, conforming to EN14683 Type II, BFE/PFE> 98%, VFE> 95%: https://gogoherbs.com/shop/med024/

Michael F. O
Author: Michael F. O

Michael FO is a ravenous health writer with over five years of experience. He has to himself a chain of certification ranging from a university degree in Biochemistry to other professional honors. The hallmark of his craft has always been to research trends and educate target-demographic with well-curated health and lifestyle content. If he is not writing, then he is busy in his greenhouse block or spending quality time with Zuby, his pet.

Leave a Comment

Your email address will not be published. Required fields are marked *

English
繁體中文 简体中文 English