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Along with the water steam comes from the wet clothes, the exhaust pipe carries lint – highly flammable particles of clothes made from cotton and polyester – through the ventilation duct. Lint can gather in the exhaust duct, reducing the dryer's capability to evict the hot water vapor, that later piles as heated energy inside the machine. When the dryer overheats, mechanical failures (thermostat, limit switch, crashed screen, or damage hose) can stimulate sparks which cause the lint confine in the dryer vent to blow up into flames. |