What does CFM mean in carpet cleaning, and why does it matter?
CFM measures the airflow a cleaning machine’s vacuum blower moves. That airflow is the mechanical force lifting suspended soil and rinse water out of the carpet and into the recovery tank. Spiker’s truckmount moves 400+ CFM through a two-inch hose. Extraction is a separate stage from cleaning, and it decides what leaves the building.
Cleaning and removal are two different stages
People assume that if a carpet was cleaned, the soil left. Those are separate events and they can come apart.
Suspension is chemistry, heat, agitation and time working together to break soil loose from the fiber. Extraction is the physical removal of that suspended soil. A carpet can be perfectly well suspended and still have most of the soil dry back into the fiber, because the recovery pass is the half that gets hurried when someone is pricing by speed.
What the blower actually is
On a truckmount the vacuum source is a positive-displacement blower. On Spiker’s Titan 575 that is a Competitor 4007 tri-lobe unit driven by a Kubota 32.5 HP liquid-cooled engine, rated at 400+ CFM.
That is not an air mover blowing across the floor. It is the machine generating suction at the wand, pulling solution, suspended soil, freed sand and most of the moisture back up a two-inch hose into a recovery tank on the truck.
Hose diameter and length change the number at the tool
Airflow drops with restriction. A longer or narrower vacuum hose delivers less airflow at the wand than the machine’s rating on paper suggests, which is why a rating alone is not the whole answer.
Spiker runs 100 feet of two-inch vacuum hose. That is what makes the figure at the machine meaningful at the tool, which is the only place it does any work.
Why airflow is what decides carpet lifespan
What wears carpet out is not foot traffic. It is dry particulate — sand and grit — worked down to the base of the pile, acting like sandpaper against the fiber every time somebody walks across it.
Extraction is how that particulate leaves the house rather than being redistributed within it. Airflow is the mechanism, so the airflow figure is a carpet-lifespan figure, not a specification-sheet detail.
The question to ask
Ask any company what its extraction CFM is and whether the system is truck-mounted. Then ask where the soil is when they leave — in a tank on their truck, or still in your carpet waiting to be vacuumed.
The follow-up
questions.
Truck-mounted systems in the 350-450 CFM range are typical for residential work. Spiker’s machine is rated 400+ CFM. The rating matters less than whether it is truck-mounted and how much hose sits between the blower and the wand.
A truckmount generally delivers more heat, more solution volume and more vacuum airflow than a portable unit, because it is powered by its own engine rather than by household current. That is also why truck-mounted jobs dry faster despite using more water.
Usually yes, because drying time is mostly a question of how much water was left behind. Stronger recovery means less residual moisture, so the carpet starts closer to dry. Airflow in the room after we leave does the rest.
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