Something that easily aided me a lot was talking to our neighbor a while ago about HVAC service tips. He pretty much instructed me about how to clean out our outdoor HVAC equipment plus stay on schedule with our air filter changes with high quality air filters. He also advocated that I acquire a whole-house air purification idea which would improve our air quality tremendously, and so I began to clean out our outdoor HVAC equipment every Springtime. This ensured that our air conditioner was functioning well by removing all that dirt plus debris from the device. I was astounded at how dirty it gets, and with the air filters, I always swap them now every 4 weeks to allow maximum airflow through our HVAC system. I use HEPA air filters as our neighbor advocated. I acquired a nice air purification idea through our local HVAC corporation. The installation was relatively cheap. That air purification system works amazingly! I couldn’t guess how much it helped the air quality inside of our apartment. I used to have a cough plus would sneeze frequently; now I rarely ever cough or sneeze ever since I began using HEPA air filters plus had that whole-house air purification idea placed in it. It’s easily great. I’m so blessed by our neighbor since he provided me with these little DIY tips. I still contact a company for HVAC maintenance once per year though. However, I have never faced any extreme problems with our HVAC idea as of yet. My neighbor said it would be safe to enroll myself in an HVAC repair plan, but I think I am going to wait.