What is the Standard Size for a House Air Filter?

Learn about standard sizes for house air filters, how to measure them correctly, and how to choose an appropriate size and efficiency level for your HVAC unit.

What is the Standard Size for a House Air Filter?

When it comes to air conditioning and HVAC units, each unit requires a specific size filter in order to work correctly and efficiently. Most of these units use standard-sized filters, but some require custom-sized air filters. The most common sizes are listed below, ordered by width x height x depth in inches. This rounded measurement is referred to as the nominal size and is used to match the correct filter to the appropriate slot.

The Home Depot also offers a wide range of air filter accessories, making it easy to keep the system running at peak performance. Although The Home Depot uses the FPR rating system, the industry standard is to use the Merv (Minimum Reporting Efficiency) classification system for air filters. A higher MERV rating means that the filter is better at maintaining air quality and eliminating environmental contaminants. Filter King offers hundreds of different filter sizes that can be used in various home systems, including ovens. In addition to filter power, the FPR also indicates what type of airborne contaminants are ideal for capturing each filter.

Air filters also help keep the furnace's coils and heat exchangers clean, which can extend the life of the oven and keep it running efficiently. If you need to measure it yourself, take out your current air filter and check the size printed on the frame. It should fit snugly in the air filter compartment with a little space around the edges. If that doesn't work, you may be able to find the proper dimensions of the air filter in the HVAC manual. When selecting an air filter for your home, it's important to consider both size and efficiency.

The size of your air filter will depend on your HVAC unit's specifications, while efficiency will depend on your needs and budget. To ensure that your system runs smoothly and efficiently, it's important to choose an air filter that fits properly and has a high MERV rating. The right air filter can make a big difference in your home's air quality and energy efficiency. By selecting an appropriate size and efficiency level for your HVAC unit, you can ensure that your system runs smoothly and efficiently while keeping your home's air clean and healthy.

Cecilia Gochett
Cecilia Gochett

Incurable coffee guru. Devoted coffee evangelist. Devoted twitteraholic. Extreme food geek. Friendly beer aficionado. Freelance coffee lover.

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