air conditioners

What Happens If You Do Not Clean or Change Your HVAC Air Filter

When it comes to HVAC systems, you might be too busy enjoying the benefits of having them that you forget that it requires maintenance to continue running smoothly. You forget to change its filter, clean the vents, and do other things to ensure it provides maximum performance and lasts as long as possible. What happens as a result? Many bad things.

Today, we’re going to focus specifically on your HVAC system’s air filter and what happens if you do not clean or change it:

1. Increases Energy Bill

That filter is your first line of defense against dirt and dust. When it is not maintained and cleaned, you are allowing dirt and dust to bypass your HVAC system’s air filter and enter your house. This dirt and dust will then be in your air ducts, causing all kinds of problems.

The most obvious of these is that you will have to use your HVAC system more to remove the dirt and dust from your home. You are also increasing your HVAC system’s energy consumption because it must no longer provide the same amount of comfort in your home.

Lastly, as the dirt and dust in your air ducts get stirred up, it will settle back in your air filter. This will eventually cause the filter to be clogged. Your HVAC system will then have to work double-time to get rid of the dirt and dust, which will cause your energy bill to skyrocket.

2. Lengthens HVAC System’s lifespan

Your HVAC system’s air filter is a big part of its life expectancy. It protects the HVAC system from dirt and dust. If you do not clear your air filter, you’re allowing more dirt and dust to enter your system. This not only places stress on your HVAC system but will shorten its lifespan because it has to work harder to clean the dirt and dust out of your home.

The longer your HVAC system runs, the faster it will wear out. That means that you will have to replace it before its useful life has ended, which will cost you more money.

3. Lower Comfort

This one is pretty obvious, but if your HVAC system’s air filter is not cleaned or replaced regularly, you will not be as comfortable in your home.

If the filter is clogged, the air that is being filtered will not be as clean. Similarly, the air will not be as dry as it should be, which can cause skin irritations and will make you feel uncomfortable in your own home. Your HVAC system will also have to work harder to perform these tasks. As such, your home will not be as comfortable as it could be.

4. Health Issues

We’ve already talked about how dirt and dust can get into your air ducts and cause health problems in your home. However, what we didn’t state is that your air filter can help prevent these problems.

It’s worth noting that the air filter is not just a one-time deal. It has to be cleaned or replaced regularly. As such, if you leave it dirty or clogged, you are allowing more dirt and dust to enter your home. This will not only affect your comfort levels but will also affect your health negatively.


The bottom line is that HVAC systems require regular maintenance to keep operating at peak levels. This includes cleaning and changing the air filter. If you do not do this, you will suffer the aforementioned problems. So, save yourself the hassle of the above consequences and get your air filters cleaned regularly or replaced when needed!

AutumnAir is a family-owned company known for providing quality HVAC and AC repair and replacement and also provides electrical services for residential and commercial clients. If you are in need of HVAC services in Birmingham, reach out to us today!

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