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Comment by andrew_eu | Hacker News Reader

My partner and I were just discussing whether our air purifier actually does something other than make noise, and whether the air quality indoors is better or worse than outdoors.

How do y'all track air quality in your home?

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You need laser particle sensor to measure it's effect. If you are into making fresh a habit, you can use odak clean air assistant to track air quality at home. It has nice gamification keep air clean and fresh around always.

I have made a series of sensors using ESPHome and attach them to my Home Assistant which allows me to do all kinds of automation. I even built my own HEPA filter platform powered by two 140mm HSP fans using some good rocket engineering to boost pressure. It's all python based, can be easily 3D printed in a 220x220 printer, and uses standard cylinder HEPA filters.

I've been quite happy with a recent AirGradient One purchase. It's easy to use and had decent reviews when I did some research.

I also like the fact they offer a discount if you buy it as a kit to be assembled (it's very easy to put together).

I bought some levoit core 300s purifier and after a minute it seemed to have made air so dry i started to have dry throat and light coughing. Thought I'd need a humidifier too .. but I just sold it back.

You wouldn't need a humidifier unless you need one anyways - air filters don't remove moisture.

Maybe it was something from manufacturing that was irritating your throat? Idk.

Yeah could be. I had a knee-jerk reaction.. maybe the covid years traumatized me a little.

IKEA has a few air quality meters. Good accurate sensors are rather expensive however, for both particulates and CO2.

I use https://uk.getawair.com/ I found from dhh that are quite accurate.

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