4 ms·
First though: Why would I need this. Then I saw something about Bejing, where I believe there's lots of smog(?). Would this help against lots of smog?
by neals 13y ago
First though: Why would I need this. Then I saw something about Bejing, where I believe there's lots of smog(?).
Would this help against lots of smog?
- seanmcdirmid 13y agoIf you live in Beijing, you need an air filter. We were about to buy an expensive one, but this is quite nice; we might just go with it.
- solox3 13y agoYes, HEPA filters are effective against particulate air pollution in Beijing.