Positive pressure
ventilation ensures blowing things like debris and particles that would
be harmful if humans breathed into their lungs out of the area where
the humans are. Positive pressure ventilation also refers to medical
procedures and devices that actually breathe for people who have
experienced trauma and need to be on a ventilator system. For the
purpose of this article we will be speaking of positive pressure
ventilation in the capacity to remove unwanted contaminants from the
air in a structure so that the remaining air is left breathable by all
concerned.