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You’ll find the backdraft damper near the top of the range hood (where it connects to the ductwork). However, some range hoods also have a second damper, which is located close to the roof or exterior wall where the ductwork ends. If you don’t see a damper in either of these places, you might not have one.

Yes, mold can grow in a wet dryer vent. Mold is a type of fungi, and fungi thrive in warm, moist conditions. Dryer vents need to be aired out so heat can escape and moisture can dry. If your dryer vents aren’t properly vented, the trapped heat and moisture will cause mold to grow, and the mold can spread to the dryer and even your clothes. Not only can this leave a musty smell on your freshly laundered clothes, but—more importantly—it also poses a health risk.

To maintain your washer and dryer, regularly clean the lint traps, filters, and vents. Also, check the hoses for wear, avoid overloading the machines, and ensure loads are balanced. These practices help optimize performance, prevent future issues, and extend the lifespan of your appliances.

Your dryer vent hose should be as straight as you can possibly get it. A straight vent means less lint buildup in the hose. If the hose has a lot of bends and turns, it’s much easier and much more likely for lint to get stuck along the line, meaning you’ll have to clean it out a lot more often to decrease the risk of a total blockage or a fire.