So you want to have better indoor air quality at home but you aren't sure what to do. If you read my last article, you know you shouldn't buy an electronic air cleaner. Instead you should stick with the tried-and-true…
The pandemic has brought a huge amount of attention to indoor air quality, even without full acceptance of the aerosol transmission of COVID-19. Unfortunately, it has also brought a huge amount of money to companies selling questionable electronic "air cleaners." …
You may not want to think about this but every time you inhale, you're breathing in air that came out of someone else's lungs. One of my favorite ventilation quotes drives this point home. In a book titled Ventilation and…
The two kinds of people in the world are those who can extrapolate from incomplete data. Regarding how COVID-19 spreads, the data are becoming more and more complete now. And the facts and analysis all point to this deadly virus…
Twitter is an utter hellscape in some ways, but it does have a few redeeming qualities. I've seen a lot of good information about the COVID-19 pandemic there, including ways to filter the indoor air for coronavirus and the emerging…
Filtration is on the minds of a lot of people lately. Because of the coronavirus pandemic, most of us would prefer not to breathe in air that contains any hint of the SARS-COV-2 virus that's been spreading the illness known…
Last year my wife and I bought a 1961 ranch-style house, and I've been having a lot of fun fixing it up. I wrote about the problem with the spray foam in the attic not covering the top plates and…
As much as I've written about filters and filtration in this blog, I have to confess there's one aspect of filter efficiency I've resisted learning about. Every article I've written that mentions filter efficiency talks about only one rating scale: …
Yesterday I gathered with a few of my friends and colleagues from the building performance community for a virtual happy hour. During our chat, Steve Byers of Energy Logic posed the question: Compared to BC (before coronavirus), how will you…
Back in 2018 I wrote a series of articles on indoor air quality and filtration. One of those articles, The Unintended Consequences of High-MERV Filters, has seen a flurry of activity in the comments over the past three weeks. It all…