Washing the HVAC Air Filter and Why It’s Important

Have you checked your air conditioner filter? As a general rule, you should examine it every month and take the appropriate steps when it is dirty. Learn more about the different types of AC filters, why they need regular maintenance and step-by-step instructions on how to clean reusable filters correctly.

Types of AC Filters

Your filter type influences indoor air quality, airflow efficiency and whether you can wash or swap it out when it becomes dirty. Here’s an overview of some common models:

• Disposable filters are commonly made of fiberglass and a paper frame. These filters are intended for short-term use and need to be swapped out every 1 to 3 months. They are generally affordable and simple to swap out but not as environmentally friendly as they need to be thrown out.
• Reusable filters have sturdier frame materials made with metals like aluminum or plastic. These filters can be washed and reused again, and can last several years if cared for properly. They are more eco-friendly and cost effective in the long run. But on the downside, cleaning them takes additional time and effort than simply replacing a disposable model.
• Electrostatic filters use static electricity to capture particles efficiently while ensuring airflow. These can be designed to either be disposable or reusable. Reusable electrostatic filters will need regular washing to preserve their effectiveness.
• HEPA filters, or high-efficiency particulate air filters, are the most effective filters of all, capturing 99.97% of airborne particles down to 0.3 microns. Most HEPA filters are disposable, but they can be used for up to an entire year before requiring replacement. While they provide superior filtration, they are higher priced and may not be compatible with all HVAC systems.

Why Clean or Change the AC Filter? 4 Important Reasons

It’s an easy chore to ignore, but rinsing or changing your AC filter is a key part of overall system maintenance for several reasons:

1. Improved air quality: A new filter is more effective at trapping dust, pollen, pet dander and other pollutants, keeping your indoor air fresher and healthier. This benefit is particularly crucial for people with allergies, asthma or other respiratory conditions.

• Less energy waste: If you never wash or replace the filter, the dust and debris slowly filling it it forces the AC to exert even more energy. A fresh filter optimizes airflow, lowering the unit’s workload and helping rein in your energy bills.

• Extend the system’s life span: Regularly maintaining the filter prevents the system from overheating, lowers wear and tear, and can even extend your unit’s lifespan!

• Saving money on energy bills and early replacement: A fresh filter saves money by tightening up your energy bills, avoiding damage and minimizing the risk of early replacement for the AC.

A Step-by-Step Guide to Maintaining the AC Filter

Apply these guidelines every one to three months to continue enjoying all the perks of a new air filter:

Prepare: To start, turn off the AC unit to avoid electrical hazards. Then, find your AC filter. It might be in the return air duct, in the air handler cabinet or within the unit itself.

Remove the filter: Carefully pull out the filter from its compartment. Check for holes or tears. If the filter is damaged, go ahead and toss it.

Vacuum the filter: Get the brush attachment on your vacuum cleaner to remove dirt, hair, fibers and other small debris.

Wash the filter: Take the filter outdoors and spray it down with a garden hose. For a more thorough clean, add a small amount of a mild detergent.

Dry the filter: Set the filter out to dry on its own completely before reinstalling it. But before you do so, don’t turn on your air conditioner or you risk allowing more dust particles right back into the system.

It’s necessary to note that disposable filters cannot be washed. They must be replaced when they become clogged with dust. The replacement filter should be the same size to ensure compatibility with your AC unit.

Other Parts of an Air Conditioner to Maintain

In addition to the air filter, other AC parts need routine maintenance for peak operation and longevity. Reach out to an HVAC professional for help cleaning components including:

• The evaporator coils inside the indoor unit remove heat from the air. With use, these coils collect a lot of dust, which hampers heat transfer efficiency. Professionals employ a commercial-grade coil cleaner to remove dust and grime.
• The condenser coils within the part of the unit kept outside expel heat taken out of your home. These coils are subjected to the rain and snow, and become dirty very easily. Although you can lightly rinse off dirt, leaves and other debris with a garden hose, leave more thorough seasonal maintenance to a professional.
• The fan blades in your AC system will also accumulate dust and dirt. An HVAC technician will inspect the fan as part of their yearly tune-up, wiping down and aligning the blades as needed to return to normal performance.
• The condensate drain line in your AC system can get clogged up with algae, mold and debris. When drainage slows or stops, choose a qualified technician to restore the drain line using a professional-grade cleaner or mold treatment.

Receive AC Maintenance Help

Routinely maintaining your AC air filter and other parts of your air conditioner encourages smooth operation and healthier indoor air quality. Service Experts Heating & Air Conditioning is ready to help. Our ACE-certified technicians offer prompt, reliable solutions to all your air conditioning concerns. To schedule your next AC maintenance visit, please contact us today.