Filtration efficiency is generally divided into three types, for example

Filtration efficiency is generally divided into three types, for example:

 

(1) BFE refers to bacterial filtration efficiency (Bacterial Filtration Efficiency), which targets particles with a size of 3 microns, which can block pollen and droplets;

(2) PFE stands for Particle Filtration Efficiency (Particle Filtration Efficiency), which targets particles with a size of 0.1 microns, which can block viruses such as influenza and SARS;

(3) FE stands for Virus Filtration Efficiency, for particle size of 0.1 to 5 microns.

 

Applicable standards for Mask BFE Tester:

 

YY0469-2011

Q/0212ZRB003-2011 Bacterial Filtration Efficiency of Medical Surgical Mask