Do fleas survive in the washing machine?

Fleas can survive in the washing machine if water temperature is low and cycle is gentle, because flea eggs, larvae, pupae, and adults are somewhat resilient, but they generally do not survive a thorough hot water wash and high heat drying cycle. Washing alone with cold or warm water may not kill all stages, especially pupae which are protected in sticky cocoons that cling to fabrics and can survive washing, and eggs that can stick to bedding. However, washing with hot water above 140 degrees Fahrenheit or 60 degrees Celsius kills most fleas, and the real killing step is drying on high heat for at least 30 minutes, as heat above 120 degrees kills all life stages including eggs, larvae, pupae, and adults. So to ensure fleas do not survive washing machine, you should wash pet bedding, blankets, and clothing in hot water with detergent, then dry on high heat for 30 minutes, and also clean washing machine drum after heavily infested loads. Vacuuming items before washing helps remove eggs. For severe infestations, wash items twice and vacuum washing machine area. Flea pupae can remain dormant for months in carpets and cracks even after washing, so thorough vacuuming of home, treating pets with veterinary flea preventative, and washing all bedding regularly is needed. So fleas can survive low temperature washing but not hot wash plus high heat drying combined.