The Importance of Replacing Your HVAC Filters

Oct 29, 2022

The Importance of Replacing Your HVAC Filters

Why Replacing HVAC Filters is Important?

Your heating, ventilation, and air conditioning (HVAC) system comprises many components like your air filter. Although they’re just a piece in an elaborate puzzle, they’re crucial to the functions of your HVAC system. Apart from filtering out particles of pollen and dust, they improve your home’s air quality and protect it from larger objects, like loose insulation, which can pose a fire hazard when caught in the system. Since air filters perform many functions, they can get dirty and clogged fairly quickly; without replacing them regularly, you’ll risk an HVAC system failure.

Your air filter catches the natural particulate pollution present in your home, like pet dander, fibres from fabric, mould and fungal spores, and dust. However, over time, it accumulates on the filter, making it denser. The particles will cease to pass through as quickly as it did before, compromising your system. Fortunately, HVAC maintenance in Toronto can help keep your system in top shape, allowing it to function seamlessly.

What Happens When You Keep a Dirty Air Filter

Dirty air filters are the easiest way to wreck your HVAC system. Its blower fan will have to exert more power to push air, drawing more energy in the process and spiking your electricity bill. Since it’s working harder, it will also wear out much faster.

Air won’t move when your HVAC system works with a dirty air filter, which means that your living spaces won’t receive enough fresh air. Not only will this mean low comfort levels in your own home, but it will also prevent the temperature sensors from working as intended. It will no longer register the designated temperature that signals the system to shut down, putting more strain on your system.

It will also require you to seek a specialist in air conditioning in Toronto since your heated or cooled air can no longer travel around easily. As a result, your system will risk overheating or freezing up. Even though you’ll be paying the same amount—or even higher—you won’t enjoy the regulated temperature you expect to have.

With extra dust and dirt on your air filter, it also creates a space for moisture to collect, providing the ideal environment for mould or bacteria to grow. These health hazards will make it even more difficult to circulate air in your home, and if they grow on the wrong side of the filter, they can even bring more pollutants and allergens into your home. If they penetrate your HVAC system and spread inside, it can compromise its entire operation.

The Best Time to Replace Your Air Filter

Given all the adverse effects of working with a dirty air filter, you’ll want to make sure you replace it right away when it’s due for a change. For best results, swap it out every month, especially if you live with pets or live in an area that experiences high amounts of pollen. Air filters are generally affordable, and changing them out is a straightforward task you can do yourself in some cases. However, if you run into any problems, it’s best to consult HVAC maintenance in Toronto.

Before you purchase a new set of air filters, be sure to check your unit’s documentation, which will specify the air filters it requires. It also contains information about the minimum efficiency reporting value (MERC) range of the furnace. Buying the right air filter is essential, as opting for one with a poor fit can compromise your HVAC system.


Air filters are a crucial component of your HVAC system, as they help produce clean indoor air. They also prevent pollutants and particles from infiltrating your home, maintaining a comfortable level of indoor air quality. By changing your HVAC air filters every month, you’ll enjoy a well-working system, lower energy bills, and fresher air in your home.

Temp-A-Sure is one of the best
HVAC companies in Toronto, Ontario . We offer the most reliable HVAC services and furnace repair in the area, ranging from heating services, gas line equipment to hot water tank repair. Contact us today to find out how else we can help!

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