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furnace air filters

Replacement Furnace Filters

Better Filters. Healthier Home.

High-efficiency air filters help your HVAC system or furnace run more effectively. They’ll last longer, saving you money over time, and remove more airborne particles than traditional filters. The models we carry also fit most common HVAC brands and sizes. We offer a variety of furnace filter models with high MERV ratings, as well as different thickness levels and air cleaning abilities. Most furnace air filters are easy to install and last up to a year. Keeping your furnace air filter up-to-date will save you money in the long run since your HVAC system will run smoothly and efficiently.

 

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Sylvane Quick Picks

Hand-picked by Sylvane’s experts, these quick picks deliver trusted performance.

Whether you’re looking for the highest quality, strong everyday reliability, or the best value for your budget — we’ve done the research so you can shop with confidence.

Special Sized 4 inch and 5 inch Filters

Helpful Articles About Replacement Furnace Filters

 

MERV Filter Ratings Explained

When buying a new furnace filter, one thing you’ll often need to decide is what MERV rating you want. MERV stands for Minimum Efficiency Reporting Value. Watch this video to learn more.

More about Replacement Furnace Filters

What To Look For in Furnace Air Filters

Every HVAC system is different. For furnace air filters that really work and eliminate pollutants in your home, you need to find out which air filters for furnaces are compatible with your system. 

There are a few things to consider, like:

  • MERV (Minimum Efficiency Reporting Value) Rating: This figure tells you exactly how effective a furnace air filter is at capturing airborne particles. Ratings are as follows:
  • MERV 8-11: Captures most dust and dander. Great for everyday home use.
  • MERV 12-13: Captures finer dust and bacteria. Ideal for allergy and asthma sufferers.
  • MERV 14: The most precise filters on the market. Perfect for commercial and medical-grade filtration.
  • Filter Size: Most filters range from 16 x 20 to 20 x 25 inches. Check which size your HVAC or furnace system uses.
  • Filter Material: Most air filters for furnace use are made of pleated synthetic media or electrostatic material, but some are even washable/reusable.
  • Replacement Frequency: Would you prefer monthly filters or ones that last up to 6 months for less frequent replacement?

Top Furnace Air Filter Brands

Some of our top furnace air filter brands, and their standout specialities, can be found here:

  • 3M Filtrete: High-performance filters with electrostatic technology and multiple MERV options. A top choice for homeowners.
  • Air-Care: Shopping on a budget? Air-Care specializes in washable, electrostatic furnace filters for long-term cost savings.
  • Nordic Pure: High-MERV options for advanced filtration in sensitive homes or for light commercial use.

Why Buy Furnace Air Filters from Sylvane?

We’re confident we have the perfect furnace air filters for you, no matter the type of HVAC or furnace system you're running. Our selection covers just about every need, from light home air quality purification to advanced, high-MERV filtration in commercial settings.

We’re here to help you make the right choice. Contact our team to get personalized advice on sizing and MERV filtration. Plus, enjoy fast shipping on every order.

FAQs

What MERV rating should I choose for my home?

MERV 8-11 works well for most homes. You might prefer a higher rating if you have allergy or asthma sufferers in the house, though. 

How often should I replace my furnace filter?

It depends on the type. You should replace disposable filters every 1–6 months. Washable filters should be cleaned monthly.

Are washable filters as effective as disposable ones?

Washable filters are reusable but usually have lower MERV ratings, so they capture fewer fine particles.

How do I find the right size furnace filter for my unit?

Check your existing filter’s dimensions or your furnace manual.

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