The Hotodeal Zhongjianle mask passed our particulate filtration efficiency machine test with a score of 97.88%. 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 220.36.
This mask has a slight plastic odor. While within the KN95 airflow standard, it's difficult to breathe when wearing this mask. We've tested several masks from this manufacturer (Chengde) and this is the worst one.We found this mask on Amazon. Its country of origin is China. Check out our video review for more details.