We talk with Brett Phillips from AprilAire about humidification and dehumidification and take a deep dive into this important IAQ factor. Let's discuss! Save 8% on your purchase https://www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It All app app.hvacknowitall.com https://www.hvacknowitall.com/pages/about Visit HVAC Know It All on social media Facebook https://www.facebook.com/hvacknowitall/ Instagram https://www.instagram.com/hvacknowitall1/