Does the QT3 Portable Air Purifier Work?

The QT3 is a small, portable air purifier designed to provide a stream of clean air on the go. Even though the QT3 is not designed for cleaning entire rooms, our tests show it is effective at cleaning small rooms up to 15 m2. That raises the question, is the …

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Can the QT3 Air Purifier Clean a Whole Room? Real-World Test

The QT3 air purifier is a light and compact air purifier, designed to create a stream of cleaner air, even if the larger room isn’t purified. But can it manage to clean an entire room? Smart Air ran a series of tests in our office meeting room to find out.                                          …

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Are CO2 Monitors Accurate?

High CO2 levels negatively affect wellbeing and productivity and strongly correlate with disease spread. Thus, particularly during the COVID-19 pandemic, measuring indoor CO2 levels is useful. Popular CO2 monitors include the IQAir AirVisual Pro and Kaiterra Laser Egg + CO2. But how accurate are these CO2 monitors? Smart Air conducted …

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Dyson Pure Cool Review: Tests Show Only 49% Effective

New Dyson Pure Cool TP04 tests show the purifier reduced indoor PM2.5 pollution levels by just 49% in a typical size room. This data adds to a growing amount of reviews and tests showing the Dyson air purifier underperforms purifiers far cheaper than it. Dyson Pure Cool TP04 Test: Marketing …

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Dyson Pure Cool air Purifier Tower CADR Review

Dyson Pure Cool Air Purifier Review: Shockingly Bad

Dyson’s Pure Cool air purifier looks impressive. However a review of its clean air rating (CADR) reveals this filter does a poor job of providing clean air – the Dyson TP05 Pure Cool’s CADR comes in at just 164m3/hr. That means the Dyson Pure Cool air purifier out as much …

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HEPA Lifespan Test Filter Air Purifier

HEPA Longevity Test: Day 200

One of the biggest questions when I started doing the DIY was HEPA lifespan–how long do the HEPAs last? Rather than just give people a nice-sounding answer, I wanted to see what the data says, so Gus has been dutifully turning on his Original DIY every day in his 12.3m2 Beijing …

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Smart Air low cost purifiers

Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.

Certified B-Corp air purifier company