Remember those hot and humid days at school, where your eyelids felt heavy and you couldn’t concentrate. I used to blame it on the boring old teacher, or the fact it was such a lovely day outside. Well now we know different.  Hundreds of studies have investigated the effects of bad ventilation in classrooms and the effect on student school work performance.

See link for more info. Lawrence Berkeley Lab

Most studies tend to concentrate on the CFM (cubic feet per minute) of the ventilation, or ACH (air changes per hour). But what are they changing out? What is being ventilated away from the students? Read More