Is it OK to Use a Bigger Air Filter? - A Guide for Homeowners

When it comes to air filters, bigger isn't always better. While it may be tempting to use a filter with a higher rating than the one your unit is designed to be, this can cause serious damage to the air conditioner or oven. Using the wrong size air filter won't necessarily damage the air conditioning system, but it will reduce its efficiency and add up quickly on your utility bill. So how do you find the perfect air filter? It's a combination of knowing how to measure an air filter and understanding that the dimensions you see may not match the actual size. If the filter is too small, it won't fit properly and air flow will be restricted.

On the other hand, if the filter is too large, the structure will wrinkle, air flow will be restricted, and longevity will be compromised. If you're wondering what happens when you use the wrong size air filter, air quality isn't the only thing you need to worry about. The biggest concern is that it may not effectively prevent dust from accumulating on the motors and fans of your air conditioning system. It's a common misconception that using an air filter with a higher MERV (minimum reported efficiency value) rating is the best option. The best way to find the right size air filter is to measure it yourself. If the dimensions are too faded to read, or if there is no air filter in sight, it's time to do it yourself.

You may also be able to find the proper dimensions of the air filters in your HVAC manual. Here's a fun fact: 70% of what Filterbuy sells is out of the 10 most common air filter sizes. For Waychoff's Air Conditioning, offering comfort that fits your home also means funding that fits your pocket. The air purification system also makes the owner less concerned about caring for the air filter and offers many other benefits. As an expert in HVAC systems, I recommend that homeowners take their time when selecting an air filter. It's important to measure correctly and make sure that you are using a filter with the right size and MERV rating for your unit.

This will ensure that your system runs efficiently and effectively, while also protecting your home from dust and other airborne particles. If you're still unsure about which air filter is right for your home, contact a professional HVAC technician for advice. They can help you find the perfect size and MERV rating for your unit, so you can enjoy clean air without worrying about damaging your system.

Catherine Plessner
Catherine Plessner

Devoted bacon trailblazer. Subtly charming burrito aficionado. Infuriatingly humble coffee advocate. Certified foodaholic. Incurable sushi guru. Award-winning travel lover.