This year, it would seem that everyone wants to buy an air quality monitor. Which is a good thing as it raises awareness of the air pollution problem. But which one to buy and where to buy it? Prices vary a lot and they each have their own advantages and disadvantages. In addition, can you really trust them to do a good job? Particularly if they are so cheap? As people keep asking me where I bought my air quality monitors from, I thought I would gather information together on this one page to help answer that question. At this moment I am not saying which ones I like the best. But, as I gradually start doing reviews of these monitors, I will also add a star rating with pros and cons for this page. Please bookmark this page or the Air Pollution page on my website as there is more to come.
The following is sorted by price with the most expensive at the top.
PROS: It has four built-in sensors that record AQI/PM2.5, CO2, temperature and humidity. It also gives you a seven-day forecast and recommendations for what you should and shouldn’t do. The screen is large and clear. If you connect it to the Internet, you will be able to see what the AQI reading is for a local outdoor air quality station. It has a built-in battery so you can carry it around your house to test different rooms. You can also set it up as an outdoor station and share the readings with everyone.
CONS: It is very expensive. The battery doesn’t last very long and so you will need to keep it plugged in. The outdoor readings only work if you have a nearby air quality station. It cannot literally tell you what the AQI is like outside of your home.
Laser Egg 2+
Name: Laser Egg 2+ | Cost: $199 (6,200 Baht) |
Website/Store: kaiterra.com | Click for My Review
PROS: Coming soon
CONS: Coming soon
PROS: It is small and handy and relatively easy to carry around with you. You can plug it into an electrical socket or a regular power bank. It records the PM2.5 levels and gives a US AQI output. The colors change depending on the level.
CONS: There is no built-in battery and so you need to have it always plugged into something. The screen is not that clear to read outside. The Mini USB socket seems fragile and so I leave the cable plugged in all of the time. It does not show temperature or humidity.
PLEASE NOTE: I hear that a new version is coming out in February 2019. You might want to wait to see what new features it has. I’ve been trying to contact them about this, but no replies so far.
SNDWAY Air Quality Monitor
Name: SNDWAY Air Quality Monitor | Cost: 1,439 Baht |
Website/Store: Lazada | Click for My Review
PROS: It is small and compact and easy to carry in your pocket. It has a built-in battery that is handy when you are checking different rooms in your house or when you are out and about. It also charges easily by plugging it into a power bank. The readout is clear and shows PM2.5, the temperature and humidity. It flashes red when it reaches dangerous levels.
CONS: I am more used to understanding the AQI levels. This monitor only shows you the PM2.5. Nevertheless, it doesn’t take long to remember that 25-50 is starting to get unhealthy. Anything above that you shouldn’t have prolonged exposure. Certainly, you shouldn’t exercise.
UPDATE: Here is a handy online calculator for working out the AQI after you input a PM2.5 number.