ThermaCELL E-4 refill 48 hours not only for hunters Economically packaged refill package for all ThermaCell devices (portable devices, lanterns, torches). In order to deceive the sophisticated sense of smell of wild animals, the "Vádász" refill tiles have the smell of musty, rotten wood leaves, which hides the scents emitted by the man during hunting. One bottle of liquid gas can be used for 12 hours, one blade for 4 hours (the package contains 4 bottles + 12 blades). The refill package can be stored for a long time, the gas cartridge and alarm tiles that has been started can be left in the device (stored in a cool, dry place). Since it is an alarm that can be operated intermittently, there is no need to use up a blade immediately. For example, if the mosquito invasion only lasts for an hour in the evening, the device can then be switched off, and one tile is thus sufficient for four evenings. The name of the synthetic active ingredient in the tile is D-Allethrin, which corresponds to a natural insecticide, Pyrethrin (which is extracted from chrysanthemums!).