Anyone who has a furry friend at home knows just how messy things can get—their hair ends up everywhere. But one place where it should never, ever end up is in the dryer. If the hair builds up over time, it could begin combining with lint and debris around it, especially if the lint screen isn't emptied before every load. "Excess dryer lint is a major fire hazard, can cause your dryer to become damaged, and also reduces the efficiency of your dryer," according to Dave Lavalle, founder of Dryer Vent Wizard, the nation's leader in dryer vent repair, cleaning, and maintenance. "To avoid a possible fire sparking, make sure to keep the areas around your dryer, including underneath and behind, free of extra pet hair, lint, and debris that might build up."
14 Things That Should Never End Up in Your Dryer, Source:https://www.rd.com/list/things-should-never-end-up-dryer/