A research done by U.S. Environmental Protection Agency researchers measured dust levels and HVAC system efficiency in evaluation homes during a one-week interval during the cooling season and found duct cleaning failed to significantly improve dust levels or system performance. Based on that report and other independent research, the EPA’s official advisory on duct cleaning concludes:
“Duct cleaning has never been shown to actually prevent health issues. Neither do studies conclusively demonstrate that particle (e.g. dust) levels in homes increase because of dirty air ducts. This is because much of the dirt in air ducts adheres to duct surfaces and doesn’t necessarily enter the living area. . . . Moreover, there’s absolutely not any evidence that a light amount of household dust or other particulate matter in air ducts poses any risk to your wellbeing.”
The Canada Mortgage and Housing Corporation (CMHC), a government agency, conducted a research in the 1990s to research two claims: Duct cleaning makes indoor air fitter; also it reduces energy costs by improving airflow.
After testing 33 homes in Montreal before and after the analysis found that there was no improvement in air quality and that duct cleaning alone did not improve airflow or energy efficiency. After a cleaning particle levels actually increased immediately in some cases. In other instances, particle levels decreased after cleaning but returned to previous levels.
If you’re worried about mold
If you suspect a mold problem — either because of visible growth or a musty smell constantly coming from supply vents — cleaning ducts won’t do much good if it does not eliminate the mold. Mold begins with a moisture problem, and the ducts are not likely to be the source. The culprits are the system’s evaporator coils, which your heating and air conditioning contractor — and many companies that are duct-cleaning — can inspect and maintain. Leaky return ducts may introduce moisture. If you suspect a mold problem, consider using a service company inspect the duct system for leaks.
If you suspect — but aren’t sure — that what you see is mold, you might be tempted to have it tested. But experts we consulted normally recommend against it, reasoning that:
•Mold is present in all homes; it becomes problematic only if there is a moisture issue.
•It is usually not worth the cost to test for mold or to identify the different sorts of mold present. It’s better to track down and eliminate moisture problems — whether.
The average cost is someplace between $300 and $600.
The fact of the matter is this: the average air duct cleaning for most homes costs between $300 and $500, with the price affected by factors like the size of the home, the number of ducts and their configuration. The average price for air duct cleaning is $45 per vent plus additional factors. The best thing to do is invite a professional in to take a look at the job so there is no guessing or hidden cost. We provide this Estimate FREE OF CHARGE!
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Clean your air ducts at least every 3 to five years. Additionally, it is essential to clean your air ducts whenever you’ve just moved into a new house or have completed a major remodel. Sawdust from construction projects can cause to get sprayed throughout your home and ductwork, particularly.
Air ducts are dirty when there is a presence of mould inside the ducts. Additionally, if you observe the visible dust explosion out of the vents, or if you observe rodents or other insects moving through the air ducts, it is a sign that the air ducts in your home are filthy.
In the presence of humidity, microbiological spores and spores growth could be released into the living space. These pollutants can have adverse consequences to one’s health when exposed for long periods of time.
No. Since dust and dirt particles can easily be thrown loose and sucked up by a powerful vacuum. A small amount of debris gets exposed to your home as a result.