For a really long time, I was using the air filters that you have to change out every single month. Sometimes I would completely forget and end up changing them after about 2 months and I realized this was not good for the HVAC system. I remember one time when I was talking to the HVAC technician, I was telling him how aggravated I was that the air filters had to be changed every single month. That’s when he asked me why I didn’t go for the air filters that you can change once every 3 months. I just stared at him for a moment, and then asked if he was pulling my leg. I honestly didn’t know that they made air filters that could be changed once every 3 months! When I finally found these fantastic air filters, I was thankful. Now I would have more time between air filter changes. I also figured it would be best to set some kind of reminders just so I didn’t forget to change those air filters every 3 months. I learned that these air filters are higher quality with a high MERV rating, and it seems that’s why they last longer. I do wonder if they can make air filters that last longer, like air filters that could last up to a year? I don’t know how it all works, but I wish I could get an air filter like that. I have heard about washable air filters and I actually have considered purchasing something like that for my HVAC system.