How do you get rid of fleas with no animal in the house?

To eliminate fleas in a home without pets, start by vacuuming thoroughly to remove eggs, larvae, and adult fleas from carpets, rugs, and furniture. After vacuuming, wash all bedding and any fabric items in hot water to kill remaining fleas. You can also use insect growth regulators (IGRs) or flea sprays specifically designed for indoor use to target any remaining pests. Finally, consider applying diatomaceous earth in areas where fleas may hide, as it can help to dehydrate and kill them.