This Electric or USB mosquito trap is effective within 20 - 50 square meters indoors. Ultraviolet fly traps are safer to use than indoor sprays.
It uses UV light to attract mosquitoes and insects. It has a 360 degrees suction fan such that mosquitoes flying at close proximity from any direction will be sucked into the insect trapper with the built in streamlined fan suction power.
It's purely physical mosquito eradication technique kills mosquitoes in a manner completely safe to humans and pets, no electric noise, non-chemical, non-toxin, and non-radioactive.