Since I started giving lectures about cooling products plus cooling system, this would be our second talk! I have worked in the industry for some time now plus appreciate interacting with Heating, Ventilation, plus A/Cs, and the ever-evolving cooling tech is a drive of mine in this industry. I am an entrepreneur plus have built our air conditioner company to become the immense it is today. The people I was with and I have a program in the contractor where air conditioner experts help the community by having talks where they answer every question concerning air conditioner install the property owners might have. The program had scheduled me to give an address for the current Heating, Ventilation, plus A/C units in the market. I prepared for the talk as best as I could. When the morning finally came, the hall was packed. I was constantly anxious plus concerned before a speech. They call it period fright; However, when I started talking, the fear disappeared as it constantly did. I listed plus explained to the newcomers in the market plus then opened the floor for questions! During these talks, there are some questions I have come to expect, including central a/cs plus how to choose a quality a/c. The first question was related to how frequently all of us should do an a/c tune-up, air conditioning service depends on the type of system, however generally, maintenance should occur once a year, plus timely air conditioner repairs. The students, some of whom would eventually become cooling workmen, also had a back-and-forth on how frequently to substitute air filters. It was 1 of the most lively crowds I have talked with regarding indoor air cleaning systems.