The Different Types of Furnace Filters, Explained

Feel stuffy in your own home?

Contaminants in your house can have dust mites, mold spores, pet dander, pollen, and many more. These impurities could cause health issues like asthma or allergies. Various types of furnace filters are proficient at capturing different contaminants. 

Also, it can protect your health and has a beneficial effect on the care and process of your HVAC unit. So, selecting the best furnace filters is essential, but it could be challenging. There are many various types available, each with its particular advantages. 

Keep reading as we discuss and understand the different types of filters.

Fiberglass Filters

The most standard type available is fiberglass filters. It’s composed of fiberglass strands that can trap dust and big airborne particles.

You could use fiberglass filters in both air conditioners and furnace units. These filters are cheap, disposable, and effective but lack air-purifying qualities.

HEPA Filters

HEPA filters, or high-efficiency particulate air, are part of freestanding air purifiers that offers high-end filtration. Some houses installed HEPA filters as part of the central air system to clean the air around the furnace. HEPA filters have ultraviolet lights that neutralize and denature cellular organisms. 

Moreover, some maintain their effectiveness by using activated carbon filters. Though they are ideal for stopping indoor impurities and improving air quality, they can lower your system’s airflow. 

Polyester Filters

Polyester filters are median size and have the highest grade materials. They kill and trap eighty to ninety-five percent of particles five microns or bigger. A polyester filter can be more pricey than a fiberglass filter, but it gives more protection against impurities. 

Pleated Filters

Pleated filters are more step-up fiberglass filters that stop and trap dust particles and allergens. You can pick between a disposable or washable type for your HVAC system. Furthermore, a pleated filter is a bit more secure than a fiberglass one.

So if you pick a pleated filter, your HVAC system will have to operate harder to draw air using the unit. As a result, the air quality in your home can improve, but your HVAC system might lose efficiency. 

Media Filters

Media filters have a paper-like textile creased into folds in a metal cabinet. While the filter is about five to six inches wide, it can cover seventy-five square feet if unfolded. It means media filters are seven times more efficient than common air filter types.

The increased surface area can also extend the media filters’ lifespans up to two years. Therefore, media filters are one of the best furnace filters for people with weak immune systems or in industrial zones.

So if you’re looking to buy the best furnace filters, consider checking out discountfilters.com.

Know Your Types of Furnace Filters

Deciding between the different types of furnace filters could be confusing. In addition, the market has many kinds of filters with other functionality. So, keeping MERV guidance and your home requirements in mind is vital.

For example, opt for a filter with higher MERV ratings if you have a house member who has allergies. However, placing a filter with a higher MERV rating will cause your unit to work harder, which may lower the lifespan.  

For more information, check out our blog posts.

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