Because there is no standard definition of "hypoallergenic" in the industry as of now, we can't claim Enro masks as hypoallergenic. That being said, we work very hard to use sustainable materials that are both safe for you and better for the environment. If you have a concern with allergies, please reference the components used in the production of the mask against known allergies. The Enro mask blocks 99% of pollen often helping people with allergies!