Xiaomi Air Purifier 4 Review: One Big Concern

For many years, Xiaomi air purifiers have been one of the better-value air purifiers in many markets around the world. Unfortunately, Smart Air’s 2023 review of the new Xiaomi Smart Air Purifier 4 found the Mi 4 comes with potentially dangerous technology. Xiaomi Mi 4 Air Purifier: What’s New? The …

Read more

Can homemade DIY and surgical masks protect against the coronavirus

Can Masks Capture Coronavirus Particles?

With the outbreak of the coronavirus, many people are wondering if masks capture coronavirus particles. It’s a lot to ask billions of people around the world to become mask experts overnight. There is a lot of conflicting information. Do surgical masks capture coronavirus particles? Media outlets like US National Public …

Read more

How Blueair Air Purifiers Can Create Dangerous Ozone

Blueair states their air purifiers use HEPASilent technology. They avoid any link to ionizers by claiming that it involves an ‘ion chamber’ that doesn’t emit ions to the room or produce ozone. However, we took apart a Blueair 203 purifier to take a look at this ‘ion chamber’. It turns …

Read more

corsi rosenthal box

Corsi-Rosenthal Box DIY Purifier: 4 Things to Know

A fan, furnace filters, and some duct tape–can air purifiers be that simple? Meet the Corsi-Rosenthal Box (CR Box) DIY air purifier. The Corsi-Rosenthal Box is a powerful, low-cost air purifier that you can put together on the cheap. At Smart Air, we’ve been building, testing, and teaching people how …

Read more

What Does the Number On My Air Purifier Mean?

What is the meaning of that number displayed on your air purifier? Many popular air purifiers including Xiaomi and Philips display live air quality readings. But what exactly do these numbers mean and are they even accurate? In this article, we break down everything you need to know about that …

Read more

xiaomi-automode-feature-image

Why You Should Never Use Your Air Purifier’s Auto Mode

Many air purifier companies add fancy features to help market their products.  One of these features is an air purifier auto mode, also called “smart mode”. The problem? Test data shows an air purifier’s auto mode routinely fails, leaving users with dangerous air. The idea behind smart purifiers’ auto mode …

Read more

Best Air Purifiers in Thailand [2022 Review]

Air pollution and COVID-19 have led to a boom in air purifiers in Thailand. But with so many options, it can be difficult to determine the best air purifier. In this article, Smart Air breaks down the top-selling air purifiers in Thailand to see which purifiers get you the most …

Read more

Smart Air low cost purifiers

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

Certified B-Corp air purifier company