After launching the world’s most cost-effective purifier (the Sqair), we started testing the HEPA lifespan. I’ve long been skeptical of the lifespan numbers purifier companies give because (1) they provide no empirical justification for the number and (2) they give the same numbers in Switzerland or Delhi. Yet clearly the HEPA would last less time […]
Category: Indoor Air
Can air purifiers kill dust mites?
Dust mites look scary. And apparently they’re probably in my home, since they’re in most people’s homes. A survey found dust mites in 84% of US beds and 68% of European beds. Yet it’s hard to know for sure whether they’re in our homes or not because they’re mostly too small to see […]
Smart Air Provides Clean Air to Automobile Giant Ford
Right after moving to their new office in the Chimes building in Gurgaon, Ford India was experiencing problems with outdoor particulate pollution (PM2.5) and chemicals (VOCs) off-gassing from new furniture, carpets, paints, and other remodeling work. To tackle these problems and protect the health of their staff, Ford India reached out to Smart Air in […]
Providing Clean Air to one of China’s biggest retailers
We’ve shipped over 50,000 of our simple, effective, no-nonsense DIY air purifiers since launching. That’s a lot of clean air, for a fraction of the market average price. In 2017 we launched the Blast and Blast Mini purifiers, which pump out huge amounts of clean air at very low noise levels. The DIYs are great […]
How to Get the Most Out of Your Purifier
If buying an air purifier is the first step to breathing clean air, the second step is knowing how to use it best! Here are the 4 most important things to know about how to use an air purifier—based on data, not intuition. 1. Note down the date of purchase HEPA filters have a […]
What’s the HEPA lifespan of the Blast and Blast Mini?
Ever since we launched the Blast and Blast Mini in 2017, we’ve wanted to get good data on how long hepa filters last. These filters are huge, 10-20 times the size of our DIY purifier filters in fact. We’d expect the HEPA lifespan to be much longer, but let’s see what the data says. The Problem with […]
How long do the Blast and Blast Mini HEPAs really last? – Supplemental Article
Estimating Lifespan from the DIY1.0 Longevity Tests The Blast HEPA is 20 times bigger than the DIY 1.0 and it is made of the same material. Thus, is it reasonable to think that the Blast HEPA will last 20 times as long? Not really, because the Blasts push more air and clean bigger rooms, so […]
Fast-Growing India Startup Zomato Installs Smart Air Ladakh Air Purifiers
Helping to fight air pollution in Gurgaon, one of India’s most polluted cities, Smart Air installed 91 Ladakh purifiers in the offices of India’s biggest food delivery startup: Zomato. In December 2018, Zomato was moving into their new 100,000 square foot office in Gurgaon, just outside New Delhi. Zomato needed a clean air solution for […]
Test: Can You Turn Off Your Purifier When You Sleep?
Here’s a question I often get asked: “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 sleeping?” The logic is that, since the doors and windows are closed, once we clean all the air in the room, it […]
India Test: Is Indoor Air Just as Polluted as Outdoor Air?
Whether indoor air is just as polluted as outdoor air is an important question for all of the millions of people living in heavily polluted cities. Yet I’ve heard a lot of disagreement about this question. I’ve heard people tell me it’s the same — “indoor air comes from outdoors anyway, so it’s the same.” […]