Mask Covid PureTex Medical Fabric 3 Layered -50 Wash Test Cycle. Elastic Ear L
- Middle Layer: Airtex
- Inner Layer : Antimicrobial PureTex Tested Fabric
- Outer Layer: Polycotton
- Product is certified to filter all particles over 0,3 microns. In addition to this it has a antimicrobial treatment which will kill bacteria as per the attached certificate.
- BFE rating on anything over 0.3 µm 99% (Bacterial Filtration Efficiency)
- VFE rating on anything over 0.3 µm 99% ( Vital Filtration Efficiency) the antimicrobial will kill the bacteria how effective it is against viruses is unknown
- Bacterial Filtration Efficiency (BFE), measures the filtration efficiency of masks using live bacteria (viable particles) that vary in size from 1 to 5 microns. ... For example, a mask with a BFE rating of 99 percent at 3.0 microns provides less protection than a mask with a PFE of 98 percent at 1.0 micron.