Understanding Your HVAC Air Filter

HVAC Air Filters | Oasis Air AZ

Your air filter is one of the most important components of your HVAC system. As air flows through your system, the filter collects dust, dander, and other contaminants. An air filter’s main function is to keep those nasty particles from flowing throughout your HVAC system. Without an air filter, particulate matter can build up on the most important parts of your system which could cause costly repairs. Plus, your indoor air quality would be compromised.

When should I change my air filter?

On average, your filter should be changed every month. The best way to determine if your filter needs to be replaced is to take the filter out and hold it up towards a light. Can you see any light passing through the filter? If you see little to no light coming through the filter, it’s definitely time to be replaced. A few things you may want to consider when determining how often you should change your filter is the type of furnace system you have, the amount of animals and people in your home, and the recommendations from the manufacturer. Depending on the kind of HVAC system you have, there may be different options of filters to choose from.

Let’s go over a few tips to help you decide on the right type of filter to install!

Choosing an Air Filter: MERV Ratings

While glancing down the aisle at the store at air filters, one thing you should look for is the MERV rating. The MERV rating can range from 1 to 20. The higher the rating, the more particulates will be filtered. The average rating for most households is anywhere from 5-13. But, be careful that you don’t choose a filter with a MERV rating that is too high as this can restrict airflow and cause your system to overwork itself and may decrease efficiency.

Different Types Of Air Filters

We know, it’s easy to get overwhelmed when trying to decide on the right filter for your home — there’s a ton of options! But understanding the differences amongst these options can help you decide what is best for you, your family, and your HVAC system.

A few commonly known types of filters are HEPA, pleated, and electrostatic filters. Our technicians recommend a simple pleated filter which is not only affordable, but it’s also the least restrictive option when it comes to airflow. Since it is a more basic filter, it is highly recommended that this type of filter is switched out monthly.

Although some more expensive filters can affect efficiency and restrict airflow, you may see benefits from choosing a more expensive filter. Some more heavy-duty filters can help with allergies and asthma symptoms. The main concern would be that it isn’t too restrictive and does not affect your system’s performance. Our technicians can help you decide which filter is right for you and your HVAC system.

Reminders to change your filter

Here are a few ways  to remind yourself when to change your furnace filter:

  • Write the date of when the filter needs to be changed on the label of the furnace filter.
  • Set a monthly reminder in your calendar on your cell phone
  • Penciling in the next due date on a calendar.

To learn more about air filters or to schedule an appointment with an Oasis Air technician, give us a call today at (480) 485-5630.