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WoodyKnows Nasal Allergy Filter - Super Breathable Hay Fever Prevention No Nose Strip Spray Aspirator [Size-IIR] (20 Filters) - AliExpress
Woody Knows brand nostril filters - can they protect you from Covid? I tested them with a PortaCount mask fit testing machine to find out. : r/Masks4All
WoodyKnows Nasal Allergy Filter - Super Breathable Hay Fever Prevention No Nose Strip Spray Aspirator [Size-IIR] (20 Filters) - AliExpress