Originally Posted by
Jake Guerrero
I think its also known as the positive and negative pressure side(s).
It is, but describing it as 'blow through' or 'suck through' makes a better visual understanding of what is going on.
The 'blow through' is positive pressure and the 'suck through' is negative pressure.
Plus, it not just 'positive pressure' or 'negative pressure', it's 'the static pressure' in the unit, which can be either positive or negative.