Best Portable CO2 Monitors for Home and Office (2023 Reviews)
- Tyler Vanzo
- Tyler Vanzo
Who we are
Clean Air Social Enterprise
Smart Air is a certified B Corp on a global mission to make clean air accessible through science, education, and affordable air purification
Subscribe to our newsletter and be part of the clean air movement
Subscribe to our newsletter and be part of the clean air movement
HEPA Filters
Remove PM2.5, PM10, dust, pollen, allergens, and viruses
Carbon Filters
Remove VOCs, smoke, formaldehyde, and odors
CO₂ Monitor
Measure CO₂, temperature, and relative humidity
TO CALCULATE THE NUMBER OF RE-BREATHED BREATHS PER HOUR take the CO2 level, subtract 400, and then d… 阅读更多 »
A suggestion for any CO2 monitor manufacturers reading this: Why don’t you add a “Percen… 阅读更多 »
Some of these CO2 monitors also seem to measure PM2.5, have any tests been done on their PM2.5 accuracy? For example. the DM1307 looks like it may be a good option for something that is very accurate for CO2, and if it also measures PM2.5 accurately, then a good value compared to the PM2.5 list against PurpleAir and such.
Also– PurpleAir claims to detect down to 0.3 micron, what are your thoughts on whether that would help directly detect possible viral levels?
Otherwise, great stuff on the blog posts! Just wish you had more affordable shipping to North America!
I’ve ordered the cheapest listed Tyler, to supplement my Aranet4 – it apparently now comes with a 2Ah battery. Hopefully replaceable!
Of interest CO2 at around 420ppm would appear generally heavier than air (0.038%) – unless the air itself was particularly ‘heavy’ (humid)?
By the way, the device you have pictured as a “SA1200P” is not the actual device model.
It’s manufacturered by someone in china and resold/rebranded under dozens of different names.
It was my first CO2 meter! It’s not bad. But I’m fairly confident it’s not 98% accurate. I suspect it’s a problem of temperature compensation, but I saw mine read 380 once outdoors.