Guide to Choosing HVAC Air Filters

Routinely changing the air filters for your furnace is an important home maintenance task. This article discusses: why you should change your air filter; how often to do it; how to choose the right filter; and how to do it yourself.


Why Is It Important To Change Your Furnace Air Filter?

Changing your furnace’s air filter is important for two reasons: 1) A dirty air filter makes your furnace’s blower motor work harder, which wastes energy. Changing your air filter can save you up to $50/year in energy savings; and 2) Over time, your furnace’s air filter gets clogged with the particles that it is made to take out of the air, and as such, as it gets dirty it can’t do its job of cleaning the air in your home. 

How Often Should You Change Your Furnace Air Filter?


The frequency of when you should change your air filter can range between once every month, to once every 3 months, and for your particular home it will depend on several factors: 

  • If you have someone in you family that has respiratory problems, such as allergies or asthma, then you will want to change your furnace’s air filter more often.
  • If you have a high level of particulates from pets, smoking, construction projects, etc., then you will want to change your air filter more often.
  • The recommended frequency will also depend on the efficiency of the filter that you use. Higher efficiency filters do a better job of removing smaller particles from the air, but they also get clogged faster, and therefore need to be changed more often.

 

How To Choose the Right Furnace Air Filter?

Similar to how often you should change your filter, the choice of the right air filter for your particular home and living situation depends on a number of factors.


The first thing to consider in choosing the right filter is knowing its size. To find the size of the filter you need, just check on the side of the current filter that is in your furnace. Most filters will have the size written right on them. However, if you have any doubts as to whether the correct size was originally installed, then it is best to check with your furnace’s manufacturer.


The next thing to consider in choosing the right filter for your home is the MERV rating of the filter. MERV ratings are used to rate the ability of an air filter to remove dust, pollen, mold spores, bacteria, etc. from the air as it passes through the filter. MERV ratings range from 1 to 16, and the higher the MERV rating, the smaller the particle that the filter can trap. Some of the most common filters found in residential use only have a MERV rating of between 1 to 4. These are relatively inexpensive, but they do NOT do a good job of filtering the air, because they will not stop particles smaller than 10 microns. Filters with MERV ratings of between 5 to 8 are a better choice, and these filters will catch particles as small as 3 microns. Filters with a MERV rating of 9 to 12 will stop particles in the 1-to-3-micron range, and these filters are a great choice for homeowners who want the best particle control possible. And finally, the most efficient filters have MERV ratings of 13 to 16 and will stop particles as small as .3 microns. These filters are used in hospitals and other super-clean environments.

Key Steps to Take Before Closing on a Home

By Amy Newcomer • February 2, 2026
Before finalizing the purchase of a home, it’s important to follow a clear checklist. Start by making sure all contingencies—such as the inspection, appraisal, and financing—are fully resolved. You should also clear the title and secure title insurance to protect yourself from future ownership disputes. Once you receive your final mortgage approval, review your closing disclosure carefully. Then complete a final walk-through to confirm that the property is in the agreed-upon condition. Lastly, gather all required documents so you’re prepared for closing day. If you need more guidance on buying a home, we’re here to help.

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By Amy Newcomer • January 30, 2026

Bring Texture Into Your Winter Home Style

By Amy Newcomer • January 28, 2026
Winter décor feels more inviting when you mix in a variety of textures. Since we spend more time indoors during the colder months, adding cozy and visually interesting materials can make any room warmer and more appealing. Chunky knit blankets, textured sweaters, or soft faux fur add comfort and break up plain spaces. Shiny fabrics—like velvet or metallic accents—add brightness and a touch of elegance. You can also use rough or ruffled pieces, along with items like faux leaves or tinsel, to bring in extra depth and dimension. Experiment with one or two special textures in each room to create a cozy, rich, and winter-ready atmosphere.

Install a Flip Cover for Your Outdoor Outlet

By Amy Newcomer • January 26, 2026
If you often rely on an outdoor outlet for speakers or seasonal lighting, keeping it protected from damp weather is important. Moisture can damage the receptacle and lower its safety over time. A practical solution is adding a trap-door style cover. This type of cover stays closed when the outlet isn’t in use and lifts easily whenever you need to plug something in. It’s a simple upgrade that keeps your outdoor outlets dry, safe, and ready whenever you need power.

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By Amy Newcomer • January 23, 2026

Use Caulk to Keep Indoor Air From Escaping

By Amy Newcomer • January 21, 2026
Refreshing the caulk around your windows and doors is one of the simplest ways to maintain your home. Good caulking helps keep indoor air inside and stops insects from slipping through small gaps. Over time, caulk can dry out and crack, creating openings that let air escape and pests enter. Fixing it is low-cost and can help reduce your energy bill. Make it a habit to inspect all windows and doors, inside and outside, and replace any caulk that is peeling or worn. Caulk made for damp areas is also ideal for bathrooms—sealing the sink, tub, and toilet prevents moisture from reaching walls and flooring, helping you avoid mold and mildew problems.

Simplify Your Kitchen Storage with Office Organizers

By Amy Newcomer • January 19, 2026
Tired of digging through piles of cookie sheets and cutting boards? Stacking them can waste space and damage their surfaces. A quick fix is to use office file organizers inside your cabinets. Metal file holders fit easily into lower cabinets and, with a rubber shelf liner underneath, stay firmly in place. They let you store baking pans, trays, and boards vertically, keeping everything organized and protected. Choose a sturdy file organizer that suits your cookware size, and enjoy a tidy, hassle-free cabinet.

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By Amy Newcomer • January 15, 2026

Maintain and Upgrade Your Kitchen Appliances

By Amy Newcomer • January 13, 2026
Improving your kitchen’s energy efficiency often starts with your major appliances. If your refrigerator, dishwasher, or oven is over 10 years old or not Energy Star certified, it may be worth replacing. Older models typically use more power and water just to operate, increasing your utility bills. Although new appliances require an upfront cost, the long-term savings can be substantial — and modern designs can instantly refresh your kitchen’s appearance. But upgrading is only part of the process. To keep appliances running efficiently for years, clean them regularly and follow the manufacturer’s maintenance guidelines. Proper care ensures better performance and a longer lifespan.

Common Winter Home Repairs to Watch For

By Amy Newcomer • January 9, 2026
Different seasons bring different risks for your home, and winter often leads to issues that require extra attention. Staying aware of these problems can help you prevent costly damage. Roof repairs are especially common during colder months, often caused by leaks. Ice dams can build up along the roofline, allowing water to seep indoors. Furnace tune-ups also become more frequent as heating systems work harder in winter. In addition, gutters face a higher chance of damage and should be inspected regularly. For more guidance on protecting your home this winter, feel free to reach out to us.