Round 2: it’s airborne! 🧵
x.com/famulare_mike/status/1893095652462338263
Last night, I put a mask filter inside my hepa and left it near my pillow, in the direction I tend to face while sleeping, about 18 inches away. Because the mask was inside the machine, there was no path for ballistic droplets to get to it. Only exposure is fine aerosols.
Why near the pillow? Because I also ran the fan blowing out to keep viral concentrations low and to prevent leakage into the house. CO2 ~525ppm all night.
Result after testing a square centimeter of mask filter? Positive! (Nose/throat this morning on left, overnight HEPA on right).
Despite only covering ~1/4 the hepa filter surface with a mask, and being in a very well ventilated room, I got direct evidence of virus excretion on fine aerosols.
Not a surprise as it’s been very well studied, but fun to see at home! There really is no room left for doubt.
You can read the unrolled version of this thread here: typefully.com/famulare_mike/79Yx21G
You can read the unrolled version of this thread here: typefully.com/famulare_mike/79Yx21G
You can read the unrolled version of this thread here: typefully.com/famulare_mike/79Yx21G
Thankfully still feeling fine. Started paxlovid this morning, so the next round of experiments will be about how fast viral load crashes out. Stay tuned!
Mike Famulare
@famulare_mike
Like polio, Twitter lingers on. Learning to be a father, husband, and person. Systems epidemiologist, see Google Scholar. All tweets mine alone, not my employer
