3 ms·
From the article: "The study found respiratory infection was much higher among healthcare workers wearing cloth masks. "The penetration of cloth masks by part
by mariodiana 7y ago
From the article:
"The study found respiratory infection was much higher among healthcare workers wearing cloth masks.
"The penetration of cloth masks by particles was almost 97% compared to medical masks with 44%."
- TheCoelacanth 7y agoYes, they are obviously not as good as a real medical mask. That doesn't mean they are dangerous compared to wearing no mask.