Lmst

#OpenCPC

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

Woman wearing N95 head band respirator inserting new probe design in side of respirator so you don't have to puncture the front, the new OpenAeros OpenCPC machine operating on the table showing the ultrafine particle levels and Aaron Collins (@masknerd) holding the new blue probe against his face to show what it looks like.

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

Aaron Collins (wearing shirt and lanyard, masked), in front of a conference poster titled "OpenCPC: devleopment of an open source, low-cost condensation particle counter". Four poster section titles are legible "Optical Design" "Key points", "Simplified Liquid handling & Gas flow", "Device performance".

Collins is holding in his left hand a black device with a white lcd screen (too bright to read what it displays) at the top.

Great presentation by Aaron Collins @masknerd at #EAC2023 on the design and validation of a low-cost and open-source condensation particle counter :OpenEngineering:
#CPC #OpenCPC

Conference presentation. The presenter shows a title slide about design of a low-cost condensation particle counter

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