Discover and read the best of Twitter Threads about #8020Agang

Most recents (2)

For engineers just tuning in to the #8020Agang scene now, a thread.
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Back in 2022, @ghhughes started posting an interesting kind of mask test on his youtube channel . Broadly surveying common public health masks using condensing particle counting equipment originally used mostly for firefighting and military masks. 2/n Image
A test instrument with such a wide dynamic range might seem like overkill, but it ended up capturing a phenomenon entirely missed by bitrex tests, N95 mode, and PFE tests - a Pareto distribution of typical exposure reductions - even within masks with the same certifications.
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Read 5 tweets
If you’re an engineer and are looking for a major time commitment of a hobby, you can probably get a used 8020A up and running in half a year using just eBay. 1/n Image
You could set up a pair of machines and do some statistical analysis to make sure you’re confident in the results. If someone from #8020Agang is in your area, it’s a mad scientist meetup! 2/n Image
The only part you can’t get on eBay are probe installers, which I make for free for people who have already gotten an antique machine working. They’re pretty simple to make with ring magnets but I’m picky about tools. 3/n Image
Read 6 tweets

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