Air Filters vs Furnace Filters

Furnace and air filters are designed to serve the same purpose; filtering air being circulated to output cleaner air. Furnace filters are specifically made for HVAC systems whereas air filters can be used for air purifiers, standalone AC units, and more. Read on as we clear the air on air and furnace filters, and how to choose the right one. 

What Are Furnace Filters and How Do They Function?

A furnace filter is a replaceable component within a heating and cooling system designed to filter the air circulating. It traps airborne particles such as pollen, pet dander, dust, and more.

Furnace air filters are usually mesh-like filters that require regular replacement to maximize effectiveness.

While the primary objective is to help circulate cleaner air, they can also reduce the workload for the heating and cooling system.

A dirty air filter can force the heating and cooling system to work harder. Replacing a furnace filter is usually rather straightforward and is a DIY chore. 

How Do Air Filters Differ from Furnace Filters?

Air filters can be used for air purifiers, humidifiers, standalone AC units, and other applications.

When replacing an air or furnace filter, you’ll want to choose one that’s compatible with the system. Air filters are available in various sizes and materials.

You can check the existing filter or manufacturer product recommendations. 

Why Is Regular Replacement of Filters Important?

Replacing furnace and air filters on a regular basis is important for various reasons.

First and foremost, doing so can help improve the air quality being circulated in your home.

In addition, maintaining a clean air filter can reduce the workload for the system and help keep things flowing freely and running efficiently. 

How to Choose the Right Filter for Your Home?

When choosing the right filter, there are two main things to consider; size and quality. Ensuring the filter is the right size is important to maximize its effectiveness. You want the filter to fit in the space allotted snugly.

You can measure the existing filter, check the existing filter for a measurement stamped along the edges, or check manufacturer recommendations.

Next, furnace air filters are available with various MERV ratings, which can indicate the filter's ability to filter particles. For most homes, filters with a MERV rating between 8 and 12 is recommended.

The MERV rating that’s most suitable for your needs can vary depending on factors such as allergies, pets, location, and more. 

What Are the Benefits of Upgrading to High-Efficiency Filters?

A high-efficiency air filter can offer a longer lifespan, improved air quality, and greater efficiency. Since air filters are relatively inexpensive, upgrade when you can to maximize the benefits of a new air filter. 

How Often Should Filters Be Replaced?

Some air filters are designed to be disposable, while others are reusable. Regardless of the type of air filter, you’ll want to maintain a clean filter.

The cadence suggested for replacement can vary depending on how often the system is used, among other variables such as the type of filter. In most cases, air filters should be replaced every 1-3 months.

Fiberglass air filters may need replacement more often, think monthly. Pleated air filters on the other hand can last longer. When purchasing an air filter, check with the manufacturer to determine the potential lifespan.

Because we don’t often stare at our air filter, setting a standing reminder to change the filter can help you keep up with the maintenance seamlessly. 

Can Using the Wrong Filter Affect My HVAC System?

There can be impacts to your HVAC system resulting from using the wrong filter. The biggest impact is the performance. However, it can also lead to reduced efficiency, poor air quality, or damage to system components.

The main thing is to choose the right filter size. If you have questions about choosing the right filter, our team of professionals is here to help.

To save yourself some brain power, order in bulk so that you have the right air filter ready for replacement at all times, or subscribe and save.

What Maintenance Practices Ensure Optimal Filter Performance?

Checking your filter on a regular basis can help ensure optimal performance.

If it’s not quite ready for replacement, you may be able to clean the filter or wipe it down to maximize performance and extend the time in between replacement.

Replacing your air filter on a regular basis is important if you wish to optimize air quality and performance of systems. 

What Are the Different Types of Furnace and Air Filters Available?

Despite the variety of air filters available, simplify making the right selection at Air Filters Delivered.

All available air filters are made with premium materials designed for maximum performance.

Simply shop by size and we’ll help match the right filter.

Experience a breath of fresh air. . . air and furnace filter shopping simplified. Shop Air Filters Delivered today!

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Fiberglass Air Filters versus Pleated Air Filters

What Happens When You Forget to Change Your Air Filter?

How Do I Measure My Air Filter?

Can I Recycle a Dirty Air Filter?

Washable Air Filters vs. Disposable Air Filters

10 Ways Dirty Air Filters Ruin Your Life


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