Winter is right around the corner in the Northern Hemisphere now, and at least in our neck of the woods, that means cold weather and snow. We don’t really mind that … actually enjoy cross-country skiing … but having to keep the house closed up makes for a pretty stale, nasty environment inside.
So, we’ve been thinking about buying an air filter machine for some time now, and I’ve finally gotten motivated to do some research on the topic and finally invest in one.
The first thing I learned is that air purifiers fall into two basic classes: electrostatic devices that use ionization to attract dust and other particles to an electrically-charged surface that you clean periodically, and those that use HEPA filters that capture the impurities as they pass through.
The obvious advantage of the electrostatic ones is that you don’t have the added expenses of replacing filters. However, I’ve read several reports indicating that the ozone produced by some of these machines can be harmful to your health. Largely defeats the purpose, doesn’t it?
With that in mind, I’m leaning more toward purifiers that use the HEPA filters. Even then, though, it’s clear that none of them are a panacea: practically every model I’ve looked at fails to capture one or more types of airborne gunk. This is a bit disappointing, but it is what it is.
In the end, I reckon we’ll go with a relatively inexpensive one to start with that has generally good reviews, and see what happens. If it helps our indoor air even a little bit this winter, it will be worth it.