2 ms·
After experiencing the COVID-19 pandemic, I have developed the habit of wearing a mask.
by Jiahang 2y ago
After experiencing the COVID-19 pandemic, I have developed the habit of wearing a mask.
- rudolftheone 2y agoYeah... The thing is surgical or cloth masks don’t do much against PM2.5. For actual pollution, you’d need a well-fitted N95 — anything less is mostly placebo with ear loops.