On April 3, 2020, the FDA issued an umbrella EUA for certain filtering face-piece respirators (FFRs) that are manufactured in China and are not approved by the National Institutes of Occupational Safety and Health (NIOSH). As mentioned in CDC's strategies for optimizing respirator supply, other countries approve respirators according to country-specific standards. These devices are evaluated using methods similar to those used by NIOSH and are still expected to provide adequate protection for healthcare personnel. Non-NIOSH-approved FFRs manufactured in China that have been confirmed by FDA to meet the criteria under the EUA are included below in Appendix A. Additionally, the FDA, in collaboration with CDC NIOSH, is increasing surveillance and sampling of all respirators imported from China - all respirator shipments from China that come into the U.S. will be subject to random sampling and testing by CDC NIOSH to determine whether the respirator meets the expected particulate filtration standards.