“Experience Cleaner Air with Filtrete 12x12x1 AC Furnace Air Filter – MPR 600, Clean Living Dust Reduction, 6-Pack”

51XT2UtufgL. AC51Q7DpZ4tPL. AC51q+R5 anAL. AC51Hr3i1TlCL. AC
Price: $58.71
(as of Mar 31, 2023 09:31:35 UTC – Details)

buy now

AC Filter 12x12x1: The Guide to Choosing the Best One for Your Needs

When it comes to maintaining a healthy and comfortable living environment, air quality is a key factor. An essential component of air quality is ensuring the proper filtration of the air that we breathe. This is where AC filters come in, and in this article, we will focus on the 12x12x1 size. In this comprehensive guide, you will learn everything that you need to know about choosing the best AC filter for your needs.

Why Choose a 12x12x1 AC Filter?

A 12x12x1 AC filter is a common size that is often used in residential homes to filter the air that is circulated through the HVAC system. The size is designed to fit various models of air conditioners and furnaces. Due to its size, it is most suitable for smaller spaces, such as apartments or single rooms.

Types of AC Filters

Before we dive into the factors that you should consider when choosing an AC filter, it is essential to familiarize yourself with the different types of filters that are available.

– Fiberglass Filters: These are the most basic filters and are made of layered fiberglass fibers. They are inexpensive and have a MERV rating of 1-4. These filters only trap large dust and debris, and they do not do much in terms of improving air quality.
– Pleated Filters: These filters are made of folded material that resembles an accordion, and they are more effective than fiberglass filters. Pleated filters come in different MERV ratings, and they can trap smaller particles, such as pollen and pet dander. The downside is that they can restrict airflow and may require more frequent replacements.
– High-Efficiency Filters: These filters are also known as HEPA filters, and they are the most advanced type of AC filter. HEPA filters are made of tightly woven fibers and can trap up to 99.97% of particles that are 0.3 microns in size or larger. They are ideal for individuals who suffer from allergies, asthma, or other respiratory conditions. However, they are the most expensive option and may require professional installation.

Factors to Consider When Choosing an AC Filter

Now that you understand the different types of filters, it is time to consider the factors that you should keep in mind when choosing an AC filter.

– MERV Rating: The MERV rating measures the effectiveness of an AC filter. The higher the MERV rating, the more particles the filter can trap. However, filters with high MERV ratings can restrict airflow, and it is essential to ensure that your HVAC system can handle the added resistance.
– Allergies and Respiratory Conditions: If you or someone in your household suffers from allergies or respiratory conditions, it is best to choose a filter with a higher MERV rating. HEPA filters are the best option in this case.
– Pets: If you have pets, you may want to consider a filter with a higher MERV rating, as animal dander can trigger allergies and respiratory conditions.
– Frequency of Replacements: Different types of filters require different replacement frequencies. Fiberglass filters are the most basic and require replacement every 30 days, while HEPA filters can last up to one year.


Proper air filtration is essential for maintaining a healthy living environment, and choosing the right AC filter is crucial in achieving this goal. When selecting a filter, it is crucial to consider the MERV rating, allergies and respiratory conditions, pets, and frequency of replacements. By keeping these factors in mind, you can select the best filter for your needs and ensure that the air that you breathe is clean and healthy.


Q: How do I know which size AC filter to choose?
A: The size of your AC filter can be found on the old filter or on the HVAC unit itself. Measure the length, width, and depth of the old filter to ensure that you purchase the correct size.

Q: How often should I replace my AC filter?
A: The frequency of replacements depends on the type of filter that you choose. Basic fiberglass filters require replacements every 30 days, while HEPA filters can last up to one year.

Q: Can I reuse my AC filter?
A: No, AC filters are designed for one-time use only. It is essential to replace your filter as recommended to ensure proper air filtration.

Q: What is a MERV rating?
A: The MERV rating measures the effectiveness of an AC filter. The higher the rating, the more particles the filter can trap.

Q: Can I install an AC filter myself?
A: Yes, installing an AC filter is a straightforward process that can be done without professional assistance. However, if you choose a HEPA filter, you may need professional installation.

You May Also Like