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Please note:

The current inventory of KOF99 MT masks have passed all ASTM F3502 testing standards for filtration, breathability, flammability, and reuse.
Please note the current inventory is not labeled for ASTM F3502 compliance. The current inventory labeling meets all FDA Emergency Use Authorization (EUA) requirements and may be marketed for source control.
Our next manufacturing run will meet all ASTM F3502 standards for labeling.