In today’s show, we interview special guest Dave Landis. Dave is a field supervisor and service technician with One Hour Heating and Air Conditioning in Lancaster, PA and has man years in the field. Serving in the HVAC industry has given Dave a great technical background but it was only in recent years that indoor air quality became his specialty. Experiencing the benefits first hand with his own family, Dave became an IAQ evangelist sharing his story with clients. Combining his technical proficiency with product presentation Dave has found riches in this niche and shares his story and advice.