This is amazing, not only a lower cost CPC for measuring mask fit and ultrafine particles in a room, but also a new probe to measure fit of a respirator without destroying it, check out the video from @openaeros and @masknerd to see how it works ( https://www.youtube.com/watch?v=R_P0gM5Gudo ). 🧵 1/

#N95 #CPC #OpenAeros #OpenCPC #Respirator #FitTesting #AirCleaner

It's been a while since the last big OpenCPC update -

The new probe that you slide under the respirator to test fit without destructive modification is an interesting development.

https://www.youtube.com/watch?v=R_P0gM5Gudo

#opencpc #fittest #cleanair

The #OpenCPC condensing particle counter in the wild! @masknerd at the #AAAR23 American Association for Aerosol Research conference.

https://twitter.com/OpenAeros/status/1709427372737356014

#FitTest