We’ve tested three particle counters available in the market – Dylos DC1100, Origins Laser Egg, and Air Visual Pro, and compared them with the government PM2.5 monitor. We found that both the AirVisual Pro and the Laser Egg correlated r = 0.98 with the official PM2.5 numbers. The Dylos had the lowest correlation at r = 0.90, but this is still incredibly high.
So all of the three particle counters are good enough as home or office air quality monitors.
Click here to read more on our tests: https://smartairfilters.com/en/blog/how-accurate-are-common-particle-counters-comparison-test/