A family pet is part of millions of families. In fact, pets are usually considered part of the family, and we want to keep them well-cared for.
Regrettably, pet hair can adversely affect your air conditioning system. With proper maintenance, you'll help preserve steady airflow and protect your air conditioner from harm.
How Does an AC Filter Work, and Why is It So Important?
A filter is an important part of any forced-air HVAC system. The filter is the primary solution to capture airborne particles, such as dust, pollen and pet hair, keeping them from reaching other rooms or areas of the property. Various designs can be used effectively, including fiberglass, pleated and electrostatic. The overall effectiveness of an air filter can be measured with its minimum efficiency reporting value (MERV), which ranges from 1 to 20, with higher ratings indicating better filtration.
The primary purpose of an AC filter is to protect the evaporator coil, blower motor and other cooling system components from dirt and debris that could cause damage. At sufficient efficiency, the air filter also improves indoor air quality by minimizing particulate matter, which often contribute to allergies, asthma attacks and similar conditions.
How Does Pet Hair Affect Your HVAC System and Filter?
While animals are shedding, their hair becomes airborne and can eventually get into the HVAC system through the return air ducts. Without a filter installed, pet hair can build up on the evaporator coil, blower motor, fan blades and other components, slowing them down and reducing efficiency. Hair can also encourage clogs if it interacts with the moisture inside your cooling, creating a breeding ground for microorganisms which can produce foul odors and lower indoor air quality.
But even if you have an air filter installed, pet hair can still lead to problems. When return airflow reaches the main HVAC system, the filter traps the hair and prevents it from landing on delicate cooling components. That being said, eventually the filter will clog, putting extra strain on the HVAC system. Without intervention, higher energy bills and more repair visits could be likely.
What About Animal Dander?
Pet dander, made up of microscopic skin flakes and saliva particles, commonly exacerbates respiratory problems for those suffering from allergies or asthma. You need a filter with a high MERV rating to effectively capture and remove dander, which is much smaller than pet hair.
How to Care for Your AC System and Filter with Pets
Fortunately, it isn't hard to protect the efficiency of your AC, even with pets living in your home. Here’s how:
- Change the filter regularly: Depending on the type of filter and how many pets you have, you should try to replace it after 30 to 90 days. Keep an eye on it every month and replace it when a clog appears.
- Periodically clean the return air ducts: Pet hair collects on the air registers and grilles, reducing airflow. You can clean them with the brush attachment on your vacuum cleaner as often as needed. Then, call a professional for cleaning out the collected pet hair, dander and dust in the air ducts every few years.
- Bathe or brush away excess pet hair: Regular brushing and bathing is a great strategy for reducing pet hair. Brush your pets outside when possible and sweep the area after you've finished to keep any hair from getting back inside.
- Consistently vacuum and dust: Not all pet hair ends up in the HVAC system. A lot of it settles on surfaces around the house. Proper cleaning should include vacuuming, sweeping, dusting and laundering your pet’s bedding.
- Don't let debris collect near the outdoor unit: Central air conditioners feature an outdoor unit fixed to a concrete slab just outside the home. Keep the area around this unit free of debris, such as pet hair, grass clippings, dead leaves and similar materials. This helps maintain consistent heat transfer for more efficient operation.
- Schedule regular maintenance: For best results, have a trusted HVAC technician inspect and maintain the air conditioner annually, preferably in the spring. This professional can identify and fix small issues, keep internal components clean and share advice on keeping your cooling system running efficiently with pets.
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