When it comes to air conditioners, one of the biggest difference makers is the air filter. Although it may seem like a very insignificant part of your HVAC unit your air filter actually plays a big role in how well your unit cools and in the overall efficiency of your air conditioner. The fact is a dirty filter can limit your Portland OR air conditioning from reaching its full capacity and that can cost you more money.


So you need to remember to change your filter regularly. Every unit is unique but most filters need to be changed when they are too dirty, in order to function efficiently. There are several factors that play a role in how often you need to change your filter, such as:


  • What kind of AC unit you have
  • Whether or not you have pets in your home
  • How many people live in your home and how often they are present
  • The amount of air pollution or construction near your home
  • Your home’s overall air quality


Most manufacturers recommend changing your filter every 30-60 days, but again, the frequency will depend on those factors mentioned above. If you have any questions regarding the filter for your Portland OR air conditioning, then give Comfort Air a call at 360-205-1817, and we can help. Click here to contact us and click here to learn more about our service.


5 Stars for these folks. Bradford came out on the nastiest day of the year and had us up and running again in short order. Knowledgeable, professional, fast and affordable. DO business with these folks !! You will not regret it.

-Ric K. Google Review

I was planning a heater upgrade and received a 24 month no interest offer from Home Depot. They sent me a list of contractors and Comfort Air was the only contractor that called me before I could call anyone else. The customer support, salesperson and installers were fast, competent and incredibly supportive. From the time that I contacted them until the heater was installed was fast and the new heater is a big improvement over what I had before. Highly recommend Comfort Air for fast, efficient and professional service. I feel comfortable that they will be responsive, should there ever be an issue with my new heater!

-Jolene N. Google Review

We would like to thank all of you at Comfort Air for the work you just completed on our home. We are particularly pleased that your company has both the equipment and training to diagnose the exact problem we were experiencing with indoor air quality. We are very pleased that with the remedy you suggested the problem is completely resolved. The installers were highly competent and a pleasure to have in our home.
Special thanks to Dmitriy for his work from beginning to end. He is surely a gem on your staff.

-Kyle H. Google Review

Bradford the technician has come to our home a couple times and is always professional. I especially appreciate the exceptional customer service in the office. Every time I call, no matter who answers the phone, they always help me and go out of their way to help me understand how to troubleshoot my thermostat/heat pump. Today, I needed to revise an appt time and Rosa called me twice today to make sure she set up the appt for a time that would work for me. Fabulous service!

-Mardi F. Google Review

Best experience!! Bradford was so polite and helpful. He really took pride in his work and did a great job on our fireplace. Will be calling Bradford again for help if needed! One of a kind worker!!

- Alexandra Call Google Review

Always very professional and the best value I have found. I asked for a courtesy text prior to arrival and they totally did. Definitely recommend Comfort Air

-Shae Rondeau Google Review

I've had a very positive experience with Comfort Air and Trane. The system was affordable, installed in one day and they have done great follow up! Thanks Johnny!

-Gary Thompson Google Review