Check your air filters.

Checking your air filters regularly helps keep the air you breathe free of pollutants and allergens. Over time, your HVAC system’s air filters can become dusty, dirty and clogged.

Standard filters should be replaced at least once a month. The rule I use is, if it is a 1-inch filter, change it each month to keep the system running clean.

Other lifestyle factors can also play a role in how often you should change air filters. If you have pets, for example, you’ll likely have to change your air filters more often, as pet dander can clog them. The same thing goes if you don’t have carpeted floors. Carpet keeps dust from getting in the air filters.

Make sure air vents are open and clean.

Even if your HVAC system is running smoothly, it can’t work at peak performance if your vents aren’t clean—or open. Although it may sound obvious, it’s easy to forget that a vent is closed, or you may not even realize that one has partially closed. So, check your air vents to make sure that they are open.

Clean your air conditioner’s outdoor condenser unit.

Your HVAC system’s condenser unit is typically located outdoors. During the cooler months when it may not be working regularly, it’s possible that fallen leaves, branches and other outdoor debris can get stuck in the unit or its coils. Check that the unit is clear of any potential dirt or debris.

Schedule your annual maintenance check.

Your HVAC system has many working parts. The best way to prepare your HVAC system for summer and ensure that each part is performing at its best is to schedule a maintenance check.

These visits serve as a wellness check for your HVAC system. Your technician will inspect your system, provide tune-ups as needed and can catch small issues before they become large problems, ensuring that you are able to stay cool all summer long.