The latest research on the health effects of air pollution have discovered a surprising finding: low levels of air pollution are actually more harmful than higher levels. This data has potentially important implications for people living in relatively “clean” cities like New York and London. My Intuition About Air Pollution’s …
People often think of trees and green space help improve air quality and filter out pollutants, but how much do they actually help? And which tree is best for the job? Trees aren’t Filters First, we need to stop thinking that trees are filters. They’re not. The biggest effect they …
Some people think working out in a mask is dumb or even harmful. Even some professionals, like the doctor in this post on Twitter/X tell people not to wear masks. But what if breathing through a mask while exercising isn’t just harmless, it’s actually training your lungs and makes you …
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 …
When a billion people in China (and quite a few expats) woke up to the severe air pollution in almost every city in China, it forced a billion people to become experts in a complicated scientific question: Do masks work? Since then, I’ve given talks with hundreds of people all around …
The latest data on the health toll of air pollution from the World Health Organization finds it doesn’t kill people like you probably think it does. How does air pollution kill? The World Health Organization tallied up all the deaths all the deaths due to outdoor air pollution based …
Scientists have actually randomized people to wear N95 or regular surgical masks, then tracked how many people got infected with viruses similar to COVID-19 such as the flu. This data can tell us whether N95 or surgical masks are more effective at preventing infection of respiratory viruses including COVID-19. The …
Review Xiaomi Mi 2 air purifier – a good cheap and effective air purifier? Ever since I coughed through a Beijing airpocalypse, I’ve been saying clean air doesn’t need to cost an arm and a leg. I even set up Smart Air to provide low-cost purifiers to people around the …
Is KN95 the same as N95? With such similar-sounding names, it can be confusing to understand the difference between N95 and KN95 masks. This handy chart explains the similarities and differences between N95 and KN95 masks. N95 vs. KN95 Comparison Chart Source: 3M – Comparison of FFP2, KN95, and N95 …
We all know that smoking is harmful to our health, but fewer people realize that breathing polluted air can be just as dangerous, if not more so. Millions of non-smokers face the risk of lung damage every day simply by breathing the air around them. Depending on where you live, …
