Christopher Martinez took numerous photos inside and out of the combination unit located on the roof that he shared with me, including meter readings, and carefully answered all of my questions and explained what each reading indicated when he was finished with the job. He was very meticulous and methodical in checking out the entire system, including the electronic filter and the handler, and also in assuring every part of the unit was thoroughly cleaned. I was very impressed with his knowledge and his friendly and polite manner.
