The most frequent question people ask me these days is: how long does the HEPA last? This question is important because replacement HEPAs are the biggest long-term cost of clean air. IQ Air charges $370 for its filters. So if you have to replace the HEPA every two weeks, the DIY might … Read more
This article covers the testing for the Smart Air DIY purifier. For our other purifiers, check out the following links to the HEPA lifespans of our Sqair, Blast Mini and Blast. For the DIY purifier, I recommend replacing your HEPA filter after 140 days of use at 8 hours a … Read more
Is the air coming out of the air purifier clean? Yes. This is the easiest question to answer, and we can do it by holding the particle counter in front of the unit and watching the numbers drop. Here’s a video of me doing just that: (Can’t see the video? … Read more
How long do Smart Air HEPAs last? My quest to give a solid empirical answer has now completed 130 days! Gus is still dutifully tracking the effectiveness of the HEPA he’s been using in his bedroom since January (with a trip to the US in the middle), calculating the percent … Read more
passport4adragon 提问: Hi, I’m in Shanghai and recently put together your DIY purifier and bought the same fan and filter you suggested – I think it’s working! A couple of questions – I bought the exact same filter you did on Taobao – how often should it be replaced if … Read more
