I think I want to try this out and see how well it works. Looks like covid is probably primarily transmitted in particles of 9μm or larger, even though it itself is tiny. I can measure p10 levels (and p2.5), but I’m not sure the best way to generate the particles. The Wirecutter tests by burning matches but not only isn’t that all that repeatable it generates particles that are mostly much finer than we’re talking about -- ~0.1-1 μm. I wonder what would be a repeatable way to generate a lot of ~10μm particles?
I think I want to try this out and see how well it works. Looks like covid is probably primarily transmitted in particles of 9μm or larger, even though it itself is tiny. I can measure p10 levels (and p2.5), but I’m not sure the best way to generate the particles. The Wirecutter tests by burning matches but not only isn’t that all that repeatable it generates particles that are mostly much finer than we’re talking about -- ~0.1-1 μm. I wonder what would be a repeatable way to generate a lot of ~10μm particles?