Mr. Nick Rice @ihrice w/@Intermountain presented a powerful, under recognized presentation in #Utah on #IAQ

& 100% in line with @linseymarr @CorsIAQ @JimRosenthal4 @WBahnfleth 👉#SARS_CoV_2.

Entire #SLC #IAQ Summit: #UTed

A few clips in this 🧵follow: 👆2/n Start with #MERV13

(In the Q&A at the end of the full presentation we learn that @slcschools has now fully implemented #MERV13 filters in all schools.)

@SaltLakeHealth #UTed

https://twitter.com/nalticx/status/1599840267770609664

@jcooki1 @maleve @Amal4Solutions @Its_Airborne @__philipn__ @citlanx @ThePurpleAir Yep, getting there, took videos but haven’t loaded them up yet. @jcooki1 @maleve @Amal4Solutions @Its_Airborne @__philipn__ @citlanx @ThePurpleAir BTW, need to mention that the ‘Vitalight’ Mini sensor seemed to have completed an ‘ABC’ calibration on its own. This, the very night after we opened the box and started it up. The entire next day, it was reading 200 ppm below the Aranet4. Did a manual cal today & it seems good.

1/n
#WHCADinner Screenshot of Apr 30, 2022

Bar lined up on y axis. Exiting car & making way to first meeting.

Private suite with 20 ppl. gradual climb.

1st drop, entering hallway prior to ballroom.

Burst, ppl entering ballroom at once. steady at 2000 ppm CO₂ ...
#covidCO2 2/n

The dip, just right of middle, in the graph above 👆was an exit from the ballroom to the hallway, a restroom break.

Here the #Aranet4 sensor is on a table in an empty hall outside the ballroom.

#WHCADinner 2022
#CovidCO2