What’s the difference between an HVAC filter, a furnace filter, and an AC filter? Absolutely nothing. What you call it depends on where you live. People up north might call it a furnace filter, down south air conditioner filters. Just know, no matter what you call it, it’s simply an air filter.
What Does an Air Filter Do, Exactly?
Air filters work much harder than you might think. They reduce pollen, smoke, pet dander, bacteria, dust, mold dust mites and more. There are different qualities and different filtering available. You can get replacement air filters that are just right for your home’s needs.
Air Filter Rating System
Minimum Efficiency Reporting Value (MERV) is a standard that rates the overall effectiveness of air filters. Higher value MERV rating equates to finer filtration, meaning fewer dust particles and other airborne contaminants can pass through the filter.
Do Filter Materials Matter?
Absolutely materials matter. Not all types of filters operate the same. Fiberglass filters capture large particulates. They are very sturdy but rank low on the ratings. On the other hand, carbon filters get rid of odors so your indoor air remains fresh.
Are there Benefits to a Furnace Filter?
They provide clean fresh air for your home. They can keep you safe from allergens and bacteria. Furnace Filters do this by filtering harmful particulates. Home air filters protect your HVAC system but need to be changed regularly. Your HVAC system doesn’t have to work as hard if it’s pulling air through a clean filter.
All the Home Air Filter Sizes
There’s no such thing as a standard size air filter. If you were to visit one of the big box stores, you’d find that they stock over 1500 different air filters.