Why Can’t Monitors Measure PM10 or PM1 or PM2.5? How Can You Tell How Accurate a Monitor Really is?

A typical household air quality monitor uses a laser to count and measure the number of particles in the air. This laser can’t measure the exact number of  PM10 or PM1 or PM2.5 particles, just the total number of ‘all particles’ in the air. Most air quality monitors use this number and a calibrated formula to estimate the corresponding PM2.5 concentration.

Learn more: How particle counters and air quality monitors work?


Get Your Free Guide to Breathing Safe

Join the thousand keeping up on the latest research & knowledge on how to breathe safe. Sign up now and receive a free guide to breathing safe!

Was this article useful?00

Smart Air is a social enterprise that creates simple, no-nonsense air purifier and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.