"...researchers at Jeonbuk National University in South Korea found that disposable masks, including medical-grade N95 masks, released eight times the recommended safety limit for toxic volatile organic compounds (TVOCs).
According to the American Lung Association, breathing TVOCs “can irritate the eyes, nose and throat, can cause difficulty breathing and nausea, and can damage the central nervous system and other organs.” Some TVOCs can even cause cancer.
What other types of products release TVOCs? Paint, caulks, cleaners/disinfectants, pesticides, and even tobacco smoke.
Here’s the huge catch: The researchers discovered that TVOC levels were 14 times lower in cloth masks, suggesting therefore that despite not being medical-grade, cloth masks are safer to wear than N95 masks."