How Do I Clean My Air Conditioner Filters?

Have you noticed that your air conditioner isn’t performing as well as it used to? It might be time to check the filters. 

Dirty AC filters can significantly hinder your unit’s efficiency, leading to higher energy bills and decreased indoor air quality. Hickey Plumbing, Air & Electrical has been helping homeowners since 1979. Our goal is to make sure that your cooling system operates at its best through the hot Virginia summers. 

Learn how to clean your air conditioner filters effectively so your system runs smoothly and your home remains comfortable.

Why Clean Your AC Filters?

Cleaning your air conditioner filters regularly is more important than you realize. Why? 

First, it improves the efficiency of your unit by removing debris like dust, pollen, and other allergens, which can clog the filter and restrict airflow. This not only helps reduce energy consumption but also saves you money on utility bills. Additionally, clean filters contribute to better indoor air quality by reducing the presence of pollutants and allergens that can affect your health.

Filter Types and Their Maintenance

Most air conditioning units come equipped with filters that you can clean or replace to maintain good air quality in your home. Here are the common types of AC filters you can choose from:

  1. Fiberglass Filters
    These are the most basic and affordable filters. They’re designed to protect your HVAC system, not necessarily improve indoor air quality. They need to be replaced every 30 days and are best suited for homes without allergy concerns.
  2. Pleated Filters
    Made from polyester or cotton paper, pleated filters provide a larger surface area for capturing particles like dust, mold spores, and pet dander. These filters typically last up to 90 days and are a solid option for households with pets or mild allergies.
  3. Electrostatic Filters
    These filters use static electricity to attract particles like a magnet. They come in both disposable and washable versions. If washable, they should be cleaned monthly to stay effective. They’re great for trapping smaller particles like smoke and pollen.
  4. HEPA Filters
    High-Efficiency Particulate Air (HEPA) filters are among the most powerful, capable of trapping up to 99.97% of airborne particles. However, they may restrict airflow in some residential HVAC systems, so check compatibility before installing. Replacement frequency varies but is generally every 6 to 12 months.
  5. Washable or Reusable Filters
    These eco-friendly filters can be cleaned and reused multiple times, but they require consistent upkeep — usually a thorough wash every month. If not cleaned properly, they can harbor mold or bacteria.
  6. Media Filters
    Media filters are like pleated filters but better. Housed in a cabinet and with a larger surface area, they can last 6 to 12 months and are excellent at capturing a wide range of pollutants, offering high filtration without significantly restricting airflow.
  7. UV Filters
    UV filters use ultraviolet light to kill bacteria and mold. They’re often combined with another type of filter for maximum effectiveness. Maintenance typically involves replacing the UV light bulb annually.

These filters are generally designed to be user-friendly in terms of maintenance. It’s important to check your specific unit’s manual for the correct cleaning procedure and to make sure that you are not using a disposable filter that isn’t meant to be washed. 

Step-by-Step Guide to Cleaning Air Conditioner Filters

If you have a reusable filter, follow these steps to clean it effectively. 

1. Locate and Remove the Filter

Begin by turning off your air conditioner. Locate the filter, usually found in the return duct or air handler of your unit. Carefully remove the filter, checking for any signs of excessive dirt or damage. 

IMPORTANT: Make note of which direction the arrows are pointing. You’ll need to re-install the filter in the same direction.

2. Vacuum Loose Debris

Using a vacuum with a soft brush or hose attachment, gently remove any loose dust, dirt, or debris from the filter. This is especially important for pleated and electrostatic filters, as it helps extend their lifespan and maintain their efficiency.

3. Washing the Filter

For washable filters, use lukewarm water to rinse away any remaining dirt. You can also use a mild detergent if the filter is very dirty. Be sure to rinse the filter completely to remove any soap residue. Don’t use hot water or harsh chemicals, as these can damage the filter.

4. Drying the Filter

After washing, let the filter air dry completely before reinserting it into your air conditioner. Never put a damp filter back into the unit, as this can promote mold and bacteria growth.

5. Replacing If Necessary

Inspect the filter after cleaning. If it shows signs of wear or damage, or if it’s a disposable type, replace it with a new one. This ensures your air conditioner continues to run efficiently and effectively.

When to Seek Professional Help

While cleaning your air conditioner filters is a task many homeowners can do themselves, sometimes you might need professional help. If you notice any issues with your AC’s performance after cleaning the filters, or if you’re not comfortable performing the maintenance yourself, it’s a good idea to call in the experts. 

Our technicians at Hickey Plumbing, Air & Electrical are skilled in all aspects of AC services and can assist with everything from routine air conditioning maintenance to more complex repairs.

Contact Us for AC Maintenance Services

For residents of Lynchburg, VA, and the surrounding areas, Hickey Plumbing, Air & Electrical is your trusted resource for all of your heating, cooling, and electrical needs. Don’t let a dirty air filter compromise your comfort or your wallet. Contact us today to schedule a service or to learn more about how we can help you maintain the perfect home.