Indoor air covers everything we breathe when inside. We spend approximately 80% of our day indoors, so the air we breathe is incredibly important. The World Health Organisation states that 4 million people die every year because of indoor air pollution. We provide tips and advice on keeping you breathing safe when indoors using air purifiers and other life-hacks.
Here’s a question I often get asked about air purifiers: “I don’t want to hear the fan while I sleep, so can I run my air purifier for an hour and then turn it off before I sleep at night? Or should I sleep with my air purifier on at …
HEPA filters are great at filtering particles such as dust, PM2.5, and PM10. They also do an incredible job of capturing nanoparticles including bacteria, COVID-19, and other viruses. What HEPA filters don’t do though, is destroy the particles. This has led to a lot of marketing hype and confused air …
Data shows that improving indoor ventilation can reduce the risk of virus transmission, and is recommended by the CDC. But what are the recommended air changes per hour for different spaces? In this article, we’ll cover the recommended ASHRAE recommended air changes per hour for offices, homes, schools, residential and hospitals, using …
Newly renovated apartments and offices typically have high levels of formaldehyde. One of the most effective ways of removing formaldehyde is to run a formaldehyde cookout. But what is a formaldehyde cookout and how do you run one? In this article, we show how to run a cookout in your …
Lots of companies will sell you formaldehyde sensors, but a simple test you can do at home will reveal they are fakes. Formaldehyde detectors routinely react to lots of common gases that are not formaldehyde, making the numbers impossible to interpret. Given that unfortunate fact, here’s what you can do …
Wondering what the EN1822 HEPA filter standard is, and when to use it? This article covers the scope and history of the EN1822 standard, the different EN1822 filter classifications, and the test methods used. Jump to the relevant section: EN1822 HEPA Filter Standard: Overview EN1822 and its latest version, the …
Does activated carbon filters remove formaldehyde and VOCs? Earlier tests from Smart Air found that carbon does reduce VOCs from cigarette smoke. But formaldehyde and VOCs in general are particular concern for many people. We put activated carbon filters to the test by ordering formaldehyde straight from the factory and …
Should air purifiers have the HEPA filter on the front or the back–is it better to push or pull air? The Smart Air lab in Beijing ran tests of the same fan with the HEPA filter on either side, and the results contradict most people’s intuition. When I made my …
In the hustle and bustle of modern life, concerns about air quality often center around respiratory health and physical well-being. However, a growing body of research is shedding light on a less visible but equally significant aspect: the profound impact of air quality on mental health. This article delves into …
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