actuallydo it both so your dryer continues to do its very best work for you, and also to decrease the risk of fire and keep your family safe.You should be deep-cleaning your lint trap about once a month or so in an ideal world....
The motor is attached to the fan, which has angled blades (like an airplane propeller). As the fan blades turn, they force air forward, toward the exhaust port (check out How Airplanes Work to find out what causes this). When air particles are driven forward, the density of particles (...