Benefits/Features natural insect repellent tiles. with natural geraniol for mosquitoes and midges. suitable for all electrical appliances. use use one fleriana insect repellent tile in a space of 40 cubic meters. the product has an action time of approximately 8 hours (all night long). for larger spaces use more tiles. place one tile on the metal surface of the special electrical device, place the device near an open window and connect it to the power (230v). ingredients geraniol