Mortein Insta 5 Plug-in Mosquito Repellent comes in a handy liquid vaporizer format that offers complete protection from dengue causing mosquitoes. Formulated with active ingredients, Mortein vaporizer is a powerful and convenient solution to offset mosquitoes and serve as the first line of defense against potential diseases and health hazards. Mortein Insta 5 Mosquito Repellent, as the name suggests, is effective in killing mosquitoes immediately, typically within 5 minutes of plug in. The refill bottle fits all devices (except Good Knight Express). Moreover, Mortein device has a superior heating system that ensures low electricity consumption and the dual mode machine with high and low intensity modes, make sure you and your family stay protected always. Liquid Vapouriser bottle shall last for 45 nights in approved use of 8 hours per night.