Temtop Particle Detector Professional Accurate: Unmatched Precision in Measuring Airborne Particles Review

I am a doctor and I have a vacuum room in my practice. I use this unit to see how efficient exhaust fans and HEPA purifiers remove indoor air particles. I used a smoke pen and incense sticks to create the particles and then recorded the "cleansing" effect. This is a very useful device. When you look at the photos copied from the device. An illustration shows the effect of a HEPA air purifier and an exhaust fan. Another image shows the results with regular aeration particles for both produced by

This is a correspondence of my previous review. I thought it was pretty good until I realized they sent me a used one! The screen was riddled with scratches but was covered with a protective film. I don't know if it was company or a sneaky throwback, but I shot the tape and here it is. I could get over it if it was even remotely right. My wife also ordered one and when he stood by after a few minutes of stabilization, one read 1.2 µg/m3 and the other 14.6 µg/m3. According to County Instruments,

September 2020 update. This device has worked well and I am using it to monitor air quality during the ongoing California wildfires. Its outdoor readings match the official numbers pretty well, and I now think they're pretty accurate. If I move it from indoors to outdoors or to a room where I have an air filter, it reads about as it should. As I hinted at in the original review, the graphics mode isn't very useful. The peaks average over time. I mainly use it by taking it into a room or…