I'm sure the are many articles on the subject...
Try Google Scholar to search...
Certain Face Masks Contain Toxic Chemicals, Inhalation of Which has the Potential to Affect the Upper Respiratory System
- However, certain types of face masks have been shown to contain toxic chemicals such as formaldehyde, aniline, and Perfluorocarbons (PFCs). Various health ?
- The production of disposable plastic face masks (DPFs) in China alone has reached to ? fibres, particles, siliceous fragments and leachable inorganic and organic chemicals were observed ?