Letter Re: Introduction to UV Air Treatment
Dear Editor: Can Michael M. provide a bit more detail in his process of developing a UV air treatment solution? The part about” “Slack tube manometer and did a static test with the air handler running and the house closed up tight. I had a negative pressure of .45″ water column vacuum. I concluded that I needed a fresh air return duct if I was going to use my air handler to try and pressurize the house” is difficult for me to visualize. Is the manometer on the upstream side of the Air Handler fan or the down stream? Also …