There is no level of pm2.5 that is considered safe to breathe, and it is easy to find out levels in your area so make your own call based on that.
It will be a placebo if your home cannot be isolated from outside air or if you don't make an effort to keep windows closed when air is bad.
Also, many expensive purifiers are overpriced junk compared to even simple DIY solutions like those found on particlecounting Tumblr and similar. Ideally the first thing to do is get some reputable air quality monitors.
It will be a placebo if your home cannot be isolated from outside air or if you don't make an effort to keep windows closed when air is bad.
Also, many expensive purifiers are overpriced junk compared to even simple DIY solutions like those found on particlecounting Tumblr and similar. Ideally the first thing to do is get some reputable air quality monitors.