Doing more research about air conditioning

I’m going to go down to the Heating and Air Conditioning corporation today and ask them which filter is the best for our a/c.

I would like to have one that keeps all the dust from getting into the ductwork so it doesn’t need to be cleaned so often.

I am having a problem with dust and would like to solve the problem once and for all. I think a HEPA filter would be the best type but I easily know nothing about A/C because I have lived overseas for most of my life and we didn’t even have a/c in our flat. We didn’t need it because the weather was easily mild where I lived and would only get freezing in the Winter but not hot in the summer. So now all of this a/c stuff is current to me and I would like to learn more about it so I can take care of our Heating and Air Conditioning system. I would like to hire a corporation to do the job for me but I would also like to know what needs to be done on a proper basis. I know I’m kind of lost in this area and would like a class or a seminar for dummies like me. Maybe I can find some information online about Heating and Air Conditioning but I easily don’t know what I am trying to find out, it’s just so new to me. I think our nice neighbor may be able to help me if he has the time as he seems to constantly be at work.

air conditioning repair