How overhead dust gets back into the air
Supply vents
Conditioned air passes over dusty faces and fins, and leaves dark rings on the ceiling where it lands.
Returns
Returns pull room air in, so lint and dust collect on the grille like a dryer screen, in plain view.
Fans
Dust settles on blade tops while a fan is off and is thrown across the room the moment it starts.
Ducts, beams and joists
HVAC cycling and vibration can dislodge dust from the tops of exposed ducts and structure.
Why the method matters
Feather dusters and dry cloths can make fine dust airborne, so it settles right back on tables, shelves and people. AELC providers follow the AELC Source-Control Method: HEPA source-capture vacuums and damp microfiber remove dust at the surface, so it leaves your building.
What we do, and what we don't claim
Above Eye Level Cleaning removes accumulated dust and grime from overhead surfaces. It is not air testing, medical treatment, mold remediation or HVAC duct cleaning, and we don't promise specific health or air-quality results. We do promise a cleaner building, documented with before-and-after photos.
Frequently asked questions
Does cleaning vents improve indoor air quality?
Cleaning removes accumulated dust from the surfaces air passes over and from the room. It supports good indoor environmental quality as part of a broader program that includes filtration and HVAC maintenance. AELC providers do not promise specific health outcomes.
What is indoor environmental quality (IEQ)?
IEQ is the overall condition of an indoor space: air quality, cleanliness, lighting, temperature and comfort. Overhead surfaces affect several of these.
Is this the same as air duct cleaning?
No. AELC cleans what you can see: vent faces, return grilles, fans, fixtures and the outside of exposed ducts. Duct interiors are cleaned by HVAC duct-cleaning contractors.
How often should vents and returns be cleaned?
Every three months is common in restaurants, gyms, medical offices and other busy spaces; every six to twelve months in offices and lighter-use buildings.