I was in HVAC class 1 day, as well as I was feeling stupid! My lecturer was going over basic HVAC knowledge. He asked me what the first line of protection was to stop vital components from malfunctioning. I point to the air filter, as well as I was sure everyone was laughing at me. The guy in front of me was chuckling as well as I could hear him say I was stupid. The lecturer heard him too, as well as he asked him what he thought was the first line of protection in protecting the components. He told him it was regular repair. The lecturer pointed out that the HVAC worker did repair twice a year. The AC unit gets diagnosed in the Springtime, as well as the gas furnace gets diagnosed in the fall. He asked if anyone else had an opinion on the first line of protection for the HVAC system; No 1 raised their hand, but they weren’t laughing, either. The lecturer nodded at me as well as said I was right. The air filter keeps the dust as well as debris from getting into the components of the HVAC system. It helps keep the dust as well as debris from getting into the air both of us breathe. Without an air filter, the air would be dusty as well as that dirt would cause the components to grind as well as eventually break. Instead of laughing at me, they were all nodding at me. I l earned a lot from our father. He wasn’t an HVAC worker, however he taught me how to change the air filters when I was about ten. He explained how increasing the air filter kept the HVAC plan scrub as well as running well.