Dori B. 5/five ★ ★ ★ ★ ★ Wonderful notice to depth…quite obvious on possibilities without any pressure to do much more than the dryer vent cleaning. I might undoubtedly use them yet again!Overall health and Basic safety - Clean vent traces reduce the chance of mould or mildew - dryers expel about a ½ gallon of moisture per load - and h