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Glossary

VOC

Volatile organic compound — vapors off-gassed by paints, adhesives, new materials, and cleaning products.

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All glossary terms

What is VOC?

Volatile organic compound — vapors off-gassed by paints, adhesives, new materials, and cleaning products. VOCs are gases, so filters and duct cleaning don't remove them; ventilation does. Knowing the difference prevents buying the wrong fix.

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A camera inspection puts a dated photo behind every term on this page — and if your ducts don’t need cleaning, that’s what the report will say.

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Other terms in the glossary

Plenum
The distribution box connected to your air handler — supply plenum on the leaving side, return plenum on the entering side.
Supply duct
The ductwork that carries filtered, conditioned air from the air handler out to the rooms.
Return duct
The ductwork that pulls room air back to the air handler for conditioning.
Source removal
The cleaning method the ACR standard calls for: mechanically dislodge debris inside the duct, then capture it in a vacuum collector outside the living space.
Negative pressure
The vacuum state created when a high-volume collection machine is connected to a sealed duct system.
MERV
Minimum Efficiency Reporting Value — the filter-efficiency scale from ASHRAE's test standard.
15+
Years in the field
NADCA ACR
Standard
48h
Written report
< 2hr
Response
Ready when you are

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Licensed & Insured Same-Week Scheduling Photo-Documented Findings
Emergency

24/7 Response

Water intrusion in the ducts, a musty smell that won't quit, or vermin in the system? We answer 7 AM to midnight and every visit ends with camera photos and a written verdict — including a straight "your ducts are fine" when that's what we find. After-hours dispatch runs subject to crew availability.

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