Our buildings are making us sick

Re:Our buildings are making us sick by z9znz on Monday October 24, 2022 @10:01AM (#33316727)

Related: finding air quality measurement devices seems very difficult. It would be nice to know all the things in the air which we are concerned about - CO, CO2, Radon, PPM-stuff, etc. It seems few devices do it all, and some of them actually fake it (using a lookup table based on other measurements).

I'm hoping one of these days someone on HN who is an authority will post a buyer's guide.

[ Parent | on HN ]

Re:Our buildings are making us sick by walterbell on Monday October 24, 2022 @10:11AM (#33316863)

With DIY, you have the option of looking at sensor manufacturer spec sheets, e.g. there are previous HN threads on the sensors used in the DIY Air Gradient PCB.

A challenge with consumer-grade sensors is lack of calibration. Here are some comparisons of PM sensors, relative to a more expensive reference meter, https://news.ycombinator.com/item?id=32376719

[ Parent | on HN ]

Re:Our buildings are making us sick by muro on Monday October 24, 2022 @10:26AM (#33317075)

+1, I'd like to buy one, but it's difficult to tell what works well.

[ Parent | on HN ]

Re:Our buildings are making us sick by quickthrowman on Monday October 24, 2022 @11:09AM (#33317715)

> I'm hoping one of these days someone on HN who is an authority will post a buyer's guide.

I’m guessing you would need to buy products from a commercial building controls line to get sensors that actually work. Alerton (Honeywell), Distech, Johnson Controls, Automated Logic, Siemens, Trane, and others have commercial building automation lines.

[ Parent | on HN ]

Re:Our buildings are making us sick by rygine on Monday October 24, 2022 @01:42PM (#33319834)

Airthings View Plus [1] has 7 sensors, but not CO. It's working well for me. The app informs me when some readings are above a certain threshold.

1. https://www.airthings.com/view-plus

[ Parent | on HN ]