Most purifiers on the market come with a pre-filter. That would make one think that pre-filters must be a good thing, right? However, most purifier companies also love to sell people 6-stage filtration, or no – 7-stage filtration! But the science behind purifiers is surprisingly simple. Two types of filters …
With Covid-19, many of us are wondering how to properly clean our masks. Google searches for “wash N95 mask” and “wash KN95 mask” have sky-rocketed. Yet data-backed answers seem to be in short supply. The usual advice is to toss and replace masks instead of washing them. Let’s dive into …
Can you clean a HEPA filter? If so, how should you wash or clean an air purifier filter? These questions keep cropping up, as they’re just about the only remaining problem for HEPA filters. HEPA filters are almost perfect: they are backed by tons of scientific tests; they’re pretty cheap; they …
With the shortage of masks during the coronavirus outbreak, many people are wondering if washing masks is an effective way of cleaning and re-using masks. There are companies that claim to have washable anti-pollution masks. This company in India claims to have washable masks washable and can capture air pollution, …
This post contains supplemental data for the post “Can I Clean or Wash HEPA filters?“. It includes detailed information about the testing method, and the original data, open-sourced for all to view. Click here to view the original article Open Data Particle Capture Tests For the particle capture tests, CK …
