Skip to main content
Prime Air Duct Experts
Filtration

Pressure Drop

The airflow resistance a filter or fitting adds to the system.

Ask a question(469) 287-0686
All glossary terms

What is Pressure Drop?

The loss in static pressure across a component. For filters it rises with efficiency and falls with surface area, which is why a deep media cabinet can run a higher MERV at lower resistance than a one-inch filter. It also rises steeply as a filter loads — a filter left in too long can restrict airflow more than a new filter two grades higher would.

Need a pressure drop inspection or repair?

We work on pressure drop every week across DFW. CSIA-certified, written quotes, financing available.

Book an inspection (469) 287-0686

Other terms in the glossary

MERV
The standardised scale for how efficiently a filter captures particles.
Static Pressure
The pressure the blower works against — the measurement that says what filter a system can take.
NADCA ACR Standard
The industry standard defining what a legitimate duct cleaning actually is.
Source Removal
Extracting debris from the system rather than dislodging it into the airstream.
Plenum
The main air chamber directly at the air handler where supply or return trunks connect.
Boot
The fitting where a duct run connects to a ceiling, wall or floor opening.

Last thing

Get it inspected. Get it in writing.

A $99 camera inspection is the cheapest way to find out whether you need us at all — and a real share of them end with “not yet”. Either way you keep the footage.

  • Photos either way
  • Written quote first
  • Licensed & insured
Call (469) 287-0686What the inspection covers

Open Mon–Sun 7:00 AM – 12:00 AM · a person answers

Or leave three fields

3 fields

We call you back, tell you what your system likely needs, and book only if it's worth booking.

Rather talk now? (469) 287-0686

(469) 287-0686Book