KN95 Respirator Mask Testing

Have the KN95 respirators being sold by Wyze been tested? Who is the manufacturer?

Here is the CDC web-page (updated 5/8/20) that shows mask/respirator test results for several manufactures. Even though this is a material only test, some tested very poorly.
https://www.cdc.gov/niosh/npptl/respirators/testing/NonNIOSHresults.html

An important quote from the CDC page:
Most of these products have an ear loop design. NIOSH-approved N95s typically have head bands. Furthermore, limited assessment of ear loop designs, indicate difficulty achieving a proper fit. While filter efficiency shows how well the filter media performs, users must ensure a proper fit is achieved.

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