The Ryeziiio mask passed our particulate filtration efficiency machine test with a score of 98.47%. All KN95 masks are flat fold and have ear loops instead of head straps or ties.
Mask breathability is determined by airflow resistance, which we measure in pascals. The target for adults should be around 150, and the target for children should be close to 100. The airflow resistance of this mask is 114.
This mask has detectable odor that was compared to pocket lint. It, however, received high marks for its sturdy construction and breathability.We found this mask on Amazon. Its country of origin is China. Check out our video review for more details.