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how often to change hvac air filter - dirty filter vs clean

HVAC Horror Story | The Dirty HVAC Filter

We say it all the time, “Change all 1-inch air filters once a month. 4-inch filters can last six months to a year, depending on the cleanliness of your home.” There is nothing scarier than an HVAC unit that won’t blow cold or hot air when you need it; these are the reasons you should change your air filter regularly.

First Line of Defense

Air filters are a key component of your HVAC unit and are often overlooked, overworked, and underappreciated. Air filters are the HVAC system’s first line of defense against dirt, pollen, dust, and even large objects that could pose a fire risk once they’ve entered your HVAC unit. 

Give your HVAC a fighting chance to keep up with the changing seasons by regularly replacing your air filters.

Dirty Filters Restrict Airflow

When your filters become clogged with dirt and other objects, the airflow to your HVAC unit is greatly restricted. Dirty air filters also mean that the blower on your unit spreads polluted air throughout your home.

Clean Filters Mean Clean Indoor Air and a Cleaner House

If someone in your home suffers from allergies, a dirty filter could worsen their allergies and lead to additional respiratory problems. Plus, no one wants extra dirt, pollen, or pet hair floating around their home that could have been prevented.

Changing your air filter ensures that your home has cleaner and fresher air circulating. If you have pets, your home seems dusty, and multiple people live in your house, you should change your air filters at least once a month. Changing your air filter at least monthly can also reduce the dust and dirt in your home because your air filters are catching it. If you have multiple pets in your home, we recommend checking your filters more often.

Maintenance Costs and HVAC Longevity 

If a filter gets too clogged, it can cause ice accumulation on your coils or even cause your system to overheat. A clogged filter can also lead to your blower not functioning correctly. Restricted airflow from a clogged filter can also lead to dust and dander piling up in your air ducts. 

Clogged and dirty filters can lead to your HVAC system working harder to keep your house cool or warm. Making the unit run harder reduces the life expectancy of your unit and also increases your utility bills. 

We may mention changing your air filters often, but one of the most common questions we get is, “How often should I change my HVAC air filter?” The importance of changing your air filters equals a healthy, long-lasting HVAC unit and a healthier home.

If you haven’t changed your air filter in a while, you may need to have your system professionally cleaned. Preventative maintenance, such as changing your air filter, will help prolong the life of your system and ensure you’re breathing the cleanest air possible.

If you’re due for a routine check-up, give us a call, and we’d be happy to come out and ensure your system is running correctly and efficiently! 

 

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