The dirt found in your ductwork is often composed of fungi, cigarette tar, dead skin, bacteria, animal dander, dust mites and pollen.
Dirty air ducts present a health hazard, especially in children. They are more likely to be affected by polluted air than adults. People with asthma and respiratory problems, children and elderly are more sensitive to these contaminants. In fact, asthma and colds/flu were among the top 5 reasons for emergency visits in 2008.
How often you should have your air ducts professionally cleaned depends on a number of factors – how often you use the HVAC system, what part of the country you live in, if anyone in your home has asthma or allergies or if you have pets. While the recommendations usually vary from on a case-to-case basis, it is ideal to have your air ducts cleaned every 3 to 5 years.
Regular cleaning helps with air quality. If someone in your household has allergies, then you need to clean your air ducts more frequently. Cleaning the duct system and its filter will help alleviate allergy symptoms. It is best to get it done every 18 to 24 months.
Pets also play a big part in how often you should get your duct system cleaned. They shed fur and dander. They also track more pollen and dirt into your home if they spend time outdoors. These allergens will sit in the ducts and get re-circulated in your home. If you have pets, it is best to have your ducts professionally cleaned every 9 to 12 months.
If you use your system more often, the ducts get dirty. Think about it. You’ll find large accumulation of dust if you forget to vacuum under the bed for a few weeks. Now imagine what you’ll find in your air ducts if you don’t clean it for years.
Having your air ducts cleaned will not only prevent health hazards, it can also improve efficiency and the life of your HVAC system. Add to that, it also helps bring down those expensive utility bills; thus, allowing you to save money.