Wellness and Safety - Cleanse vent lines lessen the chance of mildew or mildew - dryers expel about a ½ gallon of moisture per load - and harmful carbon monoxide gasoline made by gasoline dryers. Wellbeing and Safety - Clear vent traces lower the risk of mold or mildew - dryers expel a few ½ gallon of dampness per load - and toxic carbon monoxi