Wearing masks for hours on end has led some people to worry about whether N95 masks deprive us of oxygen. Scientists have actually made people wear N95 masks and measured their blood oxygen. So we have a solid answer to this question, and it’s not what this question assumes. This question itself doesn’t ask IF […]
Tag: CO2
Should You Sleep With Air Purifier On?
Here’s a question I often get asked about air purifiers: “I don’t want to hear the fan while I sleep, so can I run my air purifier for an hour and then turn it off before I sleep at night? Or should I sleep with my air purifier on at night?” The logic is that, […]
Does Closing the Windows Starve Us of Oxygen?
Air purifiers work best in a closed room environment, but this makes some people worry that closing windows starves us of oxygen. Yet recent tests in a real apartment — with as many as seven people in a small room — show less than 1% change in oxygen levels in a closed room. Fears […]
Do Air Purifiers Work with the Window Open?
Will my air purifier still work if I have a window open? New test data from Smart Air finds that air purifiers can still meaningfully reduce particulate pollution in a room with a window cracked. Here’s what to know: Obvious Town: Purifiers Most Effective With Windows Closed No one doubts that purifiers are most effective […]
China
India
Mongolia
Bangladesh
Philippines
Global
