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 defence 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.