
PROJECTS: Corsi Box Air Purier
top (Figure
B
). This clean air then circulates
through the room while the purifier continually
cleans more air.An alternate design emits clean
air through one side (Figure
C
).
HOW DO I MEASURE THE
EFFECTIVENESS OF A DIY PURIFIER?
Clean air delivery rate (CADR) describes how
much clean air the purifier is emitting. This
measurement, combined with a given room
size, determines air changes per hour (ACH),
which defines how many times per hour the
volume of air in a given space is replaced with
recirculatedair. The Lancet Covid-19 Commission
recommends a minimum of 4 to greater than 6
ACH to reduce exposure to airborne ...