This spray works on contact to kill fleas, mites, ticks and even mosquitoes. Suitable to use on all surfaces (use as directed), it even kills flea eggs so you can use it on various surfaces at home and outdoors. It can even be used on pet bedding, blankets quilts, countertops and upholstery! With no added fragrance, it only has a slight scent. Natural ingredients make it safe to use near the whole family.