Laminar airflow air purifiers have caught people’s attention based on the idea that laminar flow can make portable air purifiers better at preventing infection. The logic is that laminar flow prevents nearby air from being caught up with the clean air coming from the purifier. But can small purifiers produce …
The boring answer is “it depends on your filter,” but here are three much more useful insights I’ve learned from actually testing HEPA lifespan: I’m not an expert in air pollution. I was just a poor grad student living in Beijing, and I started making DIY air purifiers to cope with one …
Choosing which air purifier to buy can seem complicated. With thousands of air purifier models to choose from, how to choose? In this air purifier buying guide, we take you through the four steps on how to choose an air purifier. What’s the Best Air Purifier? The best air purifiers …
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 …
Air purifiers are key to protecting yourself from wildfire smoke in your home. However, with the number of purifiers on the market, it can be confusing to know which are the best air purifiers for wildfire smoke. In this article, we dive into what to look for when buying an …
The costs of replacement HEPA filters for air purifiers can quickly add up. A quick search on Amazon reveals some HEPA filters that cost hundreds of dollars. Should HEPA filters cost this much? Put simply: No! Read on to learn why HEPA filters shouldn’t be expensive, but why some companies …
Cigarette smoke smell and the dangerous pollutants in secondhand smoke can be extremely unpleasant. The health danger is serious, with a study showing one cigarette produces 10 times the amount of dangerous particulates than a diesel car. So how can we remove the cigarette smoke smell and the cancer-causing pollutants …
Data shows face masks can protect you from COVID-19, but how about air purifiers? Can an air purifier with HEPA filters remove COVID-19 and other viruses? Can Air Purifiers and HEPA Filters Remove COVID-19 Virus? To answer this question, we need to first answer if HEPA filters can capture particles …
When I was coughing through Beijing’s airpocalypse and thinking about buying an air purifier, I wanted to know something first–do air purifiers really remove PM2.5? I wondered because I saw lots of air purifier tests on pollen, but pollen is generally 10 microns or larger, whereas I was really concerned …
Empirical data shows that air purifiers are great at cleaning air, but do they dry out the air and lead to other health problems? Do they make dry air even dryer, or can they be used as dehumidifiers to dry out the air? For me, dry air is mostly just …
