Paul H's quest for covid-slowing things. Occasionally inventive
washable95.bsky.social
Paul H's quest for covid-slowing things. Occasionally inventive
@washable95.bsky.social
Culled chickens (without a gov bailout) mean that poultry farmers are excited about UVC: x.com/Welnesschick...
"My friend is an aerosol engineer that’s tests efficacy of far-UVC lighting. He said he’s been crazy busy with farmers. I hope more farmers adopt this tech to save their livelihoods."
x.com
October 2, 2025 at 2:25 PM
I'm up for an MRI at a private healthcare company called Spire (Murrayfield, Edinburgh) that has seven air changes an hour in the room the MRI is housed in - yay. I'm a novid so far* an trying to keep it that way.
October 2, 2025 at 2:15 PM
Fungii: Aspergillus spp, Candida spp. (yeasts), Cryptococcus neoformans, Histoplasma, Coccidioides, Blastomyces
October 2, 2025 at 2:15 PM
Bacteria: TB, Legionella. 2x Strep, Staph (including MRSA), Neisseria meningitidis, Haemophilus influenzae, Corynebacterium diphtheriae, Bordetella pertussis, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Bacillus anthracis spores, Clostridium difficile spores.
October 2, 2025 at 2:15 PM
Viruses: SARS-CoV-2 (COVID-19), SARS-CoV-1, MERS-CoV, Influenza A & B, RSV, some Adenoviruses, Rhinoviruses, Enteroviruses, Measles, Mumps, Rubella, Varicella-zoster, Human metapneumovirus, Parainfluenza viruses, Norovirus, Rotavirus, Herpesviruses (HSV, EBV, CMV)
October 2, 2025 at 2:15 PM
Also. their doctor's liability insurers would tell them not to say that
October 2, 2025 at 8:55 AM
Next one I make will be more box-like. I think the 45° filters will stay - how else will you see the chewing gum decorations?
June 25, 2025 at 2:04 PM
Every school would need four per classroom to create the vortex of moving air. Potentially virus laden air up to the ceiling, across to these units, through the filters cleaned, then down the walls to and a little while later into vulnerable lungs
June 25, 2025 at 2:04 PM
Many things make this to hard as a solo woodworking project. #IKEA could mass produce these as they have the ply knowhow. #Nukit could do folded-steel construction (still flatpack delivery)
June 25, 2025 at 2:04 PM
Dirty filters removed (eww) - peering inside
June 25, 2025 at 2:04 PM
As you'd see it if you were standing in the room. It's above your head per the ADA.
June 25, 2025 at 2:04 PM
Bottom. These fans would blow down the wall it was screwed to
June 25, 2025 at 2:04 PM
Side view
June 25, 2025 at 2:04 PM
Back of unit that'd go against the wall (with space feet)
June 25, 2025 at 2:04 PM
An attempt to coerce GPT into some renditions, two of many here. it can't quite depict the single room-sized toroid
May 8, 2025 at 1:58 PM
Reposted by Paul H's quest for covid-slowing things. Occasionally inventive
I feel pretty good about measurements. I tested CADR in a 412.8 cubic foot bathroom, filled with nebulized NaCl solution, and mixed with a small fan. I used a Sensirion SPS30 Particle Counter, controlled by an ESP32 μcontroller, streaming into μSoft Excel. See ALT 4 more stuff.
May 4, 2025 at 9:17 PM
I suspect part of the objection in schools is that they would ordinarily take up floor space, and be a kick hazard. Or fiddle-with-it hazard.

Looking forward to the video, Gary. Did you order any PIR switches yet? Like.. www.aliexpress.com/item/1005007...?
www.aliexpress.com
May 5, 2025 at 9:28 AM
#AntiFragile (en.wikipedia.org/wiki/Antifra... talked talked about "some systems being strengthened by encounters with disorder". It needs a new chapter to list the reality that immune systems are not like this.
Antifragile (book) - Wikipedia
en.wikipedia.org
May 1, 2025 at 2:06 PM