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# FDA Warning on Shanghai Dasheng N95 Respirators
- URL: https://www.fdaweb.com/fda-warning-on-shanghai-dasheng-n95-respirators/
- Published: 2021-08-25T12:00:00.000Z
- Updated: 2026-09-14T17:11:49.000Z
- Author: David McFarland
- Tags: Devices, #legacy-id-D5150011

FDA is alerting health care personnel to stop using certain N95 respirators manufactured by Shanghai Dasheng Health Products Manufacturing Co. because the company did not implement, maintain, and control a quality management system. All previously authorized Shanghai Dasheng respirators are no longer authorized for emergency use as a result of the loss of National Institute for Occupational Safety and Health (NIOSH) approval, an [FDA notice](https://www.fda.gov/medical-devices/medical-device-recalls/stop-using-certain-n95-respirators-manufactured-shanghai-dasheng-letter-health-care-providers?ref=fdaweb.com) says. The notice includes NIOSH approval numbers to help identify affected devices.