Given the nature of this product and the situation at hand, all sales for medical supplies are final
KN95 Respirator made for industrial use, these masks conform to the European Standard EN 149.2001 FFP2 and Chinese Standard GB2626-2006. This is a high quality mask made by a world known mask manufacturer CM (Jiande Chaomei Daily Chemicals Co., Ltd.). It features over the head adjustable straps and provides an exceptional face seal.
This manufacturer had its product (3 different mask models x 10 samples tested by NPPTL and so far all masks exceeded the Filter EfficiencyStandard
We did test these masks with Nelson Laboratories to verify manufacturers claims:
ASTM F1862 – Level 2 Liquid Barrier Standard 32/32 masks passed (reports available on request)
ASTM F2101-19 – Passed the BFE requirement > 95% Bacterial Filtration Efficiency, 32/32 masks exceeded the BFE standard (reports available on request)