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Why is it Important to Change the Air Filter in Your Furnace and Air Conditioner?

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If you ask anyone who knows about heating and cooling systems what the most important maintenance task is to keep your furnace and air conditioner running strong, the answer you’ll almost always get is, “Change your air filter!” A clogged air filter causes all sorts of efficiency and performance problems, and it is one of the leading causes of furnace and air conditioner breakdowns. Today we’re going to talk about why your air filter needs to be changed and what will happen if you neglect it!

Why does your air filter need to be changed?

In order to answer this question, let’s first take a look at what an air filter does. The air in your home contains dust, dander, allergens and all sorts of other airborne particles. So when your furnace or air conditioner begins to suck air from your rooms into your return ducts, all of those particles come with it.
Before the air in your return ducts gets to your heating and cooling system, it first must pass your air filter. As air goes through the filter, those airborne particles are trapped by the filter while the clean air keeps moving past it. This is great, but over time those particles build up on your filter more and more until there is no more space for air to efficiently blow past your filter. That’s when it’s time to install a new filter.

What happens if you don’t change your air filter?

If you have any questions about why it’s important to change your air filter, or if you’d like a heating and cooling system serviced or installed in your home, contact Cabrillo, your Bay Area plumbing, heating and air conditioning contractor.

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