Common sense: Blowing large volumes of air in a
structure will stir up large volumes of particles and cause a mess, if not a
health hazard for occupants. In restorative drying, airflow is a vital part of
the drying system, but what about the unintended side effect?
At least once a week, I get calls about the use
of HEPA-rated (99.97% at 0.3 microns) air filtration devices, also known as
AFDs, negative air machines (NAMs), or air scrubbers, on disaster restoration