What Can Animal Hair Do to My AC Filter?

Pets are an important part of many people’s lives. You probably consider your dog or cat a beloved family member and want to keep them well-cared for.

Unfortunately, pet hair usually has a negative impact on the efficiency of your air conditioning system. With proper maintenance, you can avoid impacting airflow and protect your cooling system from harm.

How Do AC Air Filters Work, and Why Are They Important?

Your air filter is a key component of the HVAC system. It captures airborne particles, such as dust, pollen and pet hair, stopping them from spreading through the ductwork. AC filters come in many different versions, including fiberglass, pleated and electrostatic. The overall effectiveness of an air filter can be measured with its minimum efficiency reporting value (MERV), which could be anywhere 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 lead to problems. At sufficient efficiency, the air filter also improves indoor air quality by minimizing particulate matter, which could lead to allergies, asthma attacks and other breathing problems.

How Does Pet Hair Affect the Air Filter of My HVAC System?

As pets shed, their hair becomes airborne and is drawn into the HVAC system through the return air ducts. Without a filter installed, pet hair collects inside the evaporator coil, blower motor, fan blades and other components, slowing them down and reducing efficiency. Hair can also become clogged with moisture found in the cooling system, creating a breeding ground for mold and bacteria that can generate 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 sensitive cooling components. At the same time, this quickly clogs the filter up, putting extra strain on the HVAC system. Without maintenance, you may experience higher energy bills and more frequent breakdowns.

What About Animal Dander?

Pet dander, consisting of tiny skin flakes and saliva particles, is a common cause of respiratory problems for those suffering from allergies or asthma. You may benefit from a higher efficiency filter to ensure it can effectively capture and remove dander, which is much smaller than pet hair.

How to Care for Your AC System and Filter with Pets

Maintaining an efficient, properly functioning air conditioner is certainly possible, even with pets living in your home. Here’s how:

  • Change the filter regularly: Depending on the number of pets and the filter's specific design, you may need a new filter every 30 to 90 days. Keep an eye on it every month and replace it if you notice weaker airflow or can see evidence of a clog.
  • Clean your air vents and ductwork: Pet hair can accumulate on air registers and grilles, reducing airflow. You can clean them with the brush attachment on your vacuum cleaner as often as needed. Then, hire a professional to remove built-up pet hair, dander and dust inside your ductwork every few years.
  • Groom your pets: Regular brushing and bathing minimizes the hair your pet leaves behind. Make sure to handle brushing outside and sweep the area afterward to prevent the hair from getting tracked inside.
  • Consistently vacuum and dust: Pet hair can be found in pretty much every room of a house. A lot of it settles on surfaces around the house. Keep up a regular cleaning routine that includes vacuuming, sweeping, dusting and laundering your pet’s bedding.
  • Don't let debris collect near the outdoor unit: Central air conditioning systems come with an outdoor unit mounted to a concrete slab just outside the home. Clear away any accumulated debris, such as pet hair, grass clippings, dead leaves and other forms of yard waste. This helps maintain consistent heat transfer for more efficient operation.
  • Don't ignore preventive maintenance: For best results, have a trusted HVAC technician inspect and maintain your cooling system once a year, preferably in the spring. They'll know how to identify and fix small issues, clean key components and offer tips to keep your air conditioning running efficiently with pets.

Call [companyname] for Indoor Air Quality Services

If you want to minimize the impact your pets have on your HVAC system and indoor air quality, look to [companyname] for tailored solutions and top-notch customer service. We sell and service many quality indoor air quality products to help keep pet hair and dander at bay, like high-efficiency air filtration, whole-house ventilation and air duct cleaning. We'll do whatever it takes to keep getting the most from your air conditioning. You can rest easy with the knowledge that everything we do is backed by a one-year 100% satisfaction guarantee! To request indoor air quality services in North America, please contact [companyname] today.

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