May 8, 2023
Key Things To Know About AC Filters
AC Unit In Wall

Key Things To Know About AC Filters


When it comes to keeping your home cool, clean, and comfortable, an air conditioning (AC) system is essential. However, maintaining the proper function of your AC system requires regular maintenance; one critical aspect of that maintenance is replacing and cleaning AC filters. 


You might not realize it, but AC filters can make or break your overall air conditioning system, so staying in the know is essential to maximize efficiency. To help you get started, let’s discuss the importance of AC filters, how they work, and why keeping them clean and maintained is necessary.


What are AC Filters?

An AC filter is a device used to remove impurities from the air before it enters the AC unit. AC filters come in various types and sizes, and the filter choice depends on the type of AC system you have, the unit size, and the level of filtration required.


AC filters can be made from various materials, including fiberglass, polyester, and pleated paper. They can also be electrostatically charged to attract and capture particles as small as 0.3 microns, such as pollen, pet dander, and dust.


How do AC Filters Work?

AC filters are designed to capture and remove particles and impurities from the air before it enters the AC system. When the air from your home is drawn into the AC system, it passes through the AC filter, which captures impurities such as dust, pollen, pet dander, and other particles.

The AC filter comprises a material that traps these impurities, preventing them from entering the AC system. Different filters are designed to capture foreign particles, ranging from large particles like dust to microscopic particles like bacteria and viruses.


The material used in AC filters can vary, but most filters are made of a pleated material such as polyester or fiberglass. These pleats increase the surface area of the filter, allowing it to capture more particles. Some filters are also electrostatically charged, which helps to attract and capture particles as small as 0.3 microns.

The efficiency of an AC filter is measured by its MERV (Minimum Efficiency Reporting Value) rating. MERV ratings range from 1 to 16, with a higher rating indicating a more efficient filter that can capture smaller particles. Filters with higher MERV ratings are generally more expensive but can provide better air quality and AC performance.


Choosing the correct type of filter for your AC system is essential, as using the wrong filter can cause problems. For example, using a filter that is too restrictive can reduce airflow, reducing the efficiency of your AC system and potentially causing damage. 


Why are AC Filters Important?

AC filters are essential for maintaining good air quality and prolonging the life of your AC system. Here are some reasons why AC filters are crucial:


Improved Air Quality

AC filters capture dust, pollen, pet dander, and other particles that can irritate your respiratory system. By removing these particles, the air quality in your home is improved, making it a healthier and more comfortable environment.


Enhanced AC Performance

Clogged or dirty AC filters can restrict airflow, reducing the efficiency of your AC system, which can cause the AC system to work harder to cool your home, leading to skyrocketing energy bills and potential AC breakdowns.


Prolonged AC System Life

A dirty or clogged AC filter can cause your AC system to work harder, increasing wear and tear. Replacing or cleaning AC filters can help extend the life of your AC unit.


How to Clean and Maintain AC Filters?

Cleaning and maintaining your AC filters is essential to ensure your AC system operates efficiently. Here are some helpful steps you can take to clean and maintain your AC filters:


Replace AC Filters Regularly

The frequency of filter replacement depends on several factors, such as the type of filter, the level of filtration required, and the frequency of use. However, as a general rule, replacing AC filters every three months or sometimes even as often as once a month if you have pets or allergies is recommended.


Clean AC Filters

Some AC filters are washable and can be cleaned with a vacuum, soap, and water. Follow the printed instructions on how to clean your AC filter properly.


Schedule Regular AC Maintenance

Professional AC maintenance includes:

  • Cleaning and inspecting the AC unit and filters.
  • Identifying potential problems.
  • Ensuring that your AC system operates at maximum efficiency.

How McCarthy Air Conditioning Can Help With Your Florida AC Needs

McCarthy Air Conditioning is a reputable AC company serving Tampa Bay and surrounding areas. Our team of air conditioning experts is trained to provide professional AC services, including installation, maintenance, and repair. 

We understand the importance of AC filters and can help you select the right filter for your AC system and replace or clean them regularly. Contact us today to schedule your AC maintenance appointment and ensure your AC system operates efficiently.


AC filters play a critical role in maintaining good air quality, improving AC performance, and prolonging the life of your AC system. Therefore, cleaning and maintaining AC filters is essential to ensure a long-lasting, healthy, happy home.

Published: May 8, 2023
Author: McCarthy AC
Categories : Uncategorized