Discover and read the best of Twitter Threads about #heroicventilation
Most recents (1)
Wow, this is what I've been advocating for Ontario school boards since August!
The School District of Philadelphia is measuring the outdoor air amount supplied by mechanical #ventilation of every room in every school. THREAD #onted
The School District of Philadelphia is measuring the outdoor air amount supplied by mechanical #ventilation of every room in every school. THREAD #onted
They use 15 CFM per person of outdoor air as the threshold.
Technically, ASHRAE Standard 62.1 is 10 CFM/person plus 0.12 CFM/sqft. If there are 18 persons in a 750 sqft room it works out to the same.
You can view the ASHRAE standards from this page: ashrae.org/technical-reso…
Technically, ASHRAE Standard 62.1 is 10 CFM/person plus 0.12 CFM/sqft. If there are 18 persons in a 750 sqft room it works out to the same.
You can view the ASHRAE standards from this page: ashrae.org/technical-reso…
Back in August, I recommended posting a sign on each school room:
