Need An Aircon Maintenance

I was not happy as I saw the aircon system in our room here in my Mother's province. It is already getting rusty and I wish to let it clean as soon as I can. The air filter is still working good. It just need general cleaning. I still have to find a person who knows how to clean it. I just want to make it sure that it will be cleaned good. I guess I need to browse a company who are offering air condition services in Cebu Province. I have to go now. It is time to take a lunch. I wish to give you more updates as soon as I can. Have a wonderful day!