The principle of its operation is the vaporization of acaricide product inside a stainless steel coil made red-hot by a gas burner. By pressing and releasing the feed pump button, the product mixed with kerosene oil is taken from the tank and forced into the red-hot coil where it evaporates immediately and exits under pressure through the nozzle. Each vaporized dispensing takes no more than 2 seconds of time. By introducing the ferret nozzle inside the Beehive's small door and pressing the button, the dose needed for a treatment is administered. Heating of the coil is achieved by a burner fed by a camping-gas cartridge. The substances that can be sprayed are the same as those traditionally used in acaricide and bactericide treatments (e.g., thymol). These substances should always be diluted with kerosene oil or demineralized petroleum.(Not suitable for use with oxalic acid!) It is recommended that the coil be emptied and the unit thoroughly cleaned after EACH use, BEFORE turning it off in order to avoid clogging the coil and sprayer. To do this, remove the yellow canister and press the dispenser button repeatedly until the pump is empty and no spray is still coming out, at which point it is advisable to do a few pumps with only diluent without medicine; then close the gas nozzle.During this operation, move the Ferret to different positions in order to get all the fluid left in the coil out. It is also recommended to disassemble and clean the sprayer frequently. INSTRUCTIONS FOR USE INSTRUCTIONS FOR USE By pressing and releasing the button, the product is sent to the coil, where it vaporizes instantaneously by escaping from the sprayer as a vaporous cloud and entering the Beehive. Each vaporized dispensing takes no more than 2 seconds to complete. Steam moisture is determined by the frequency of pumping; pumping at 5-second intervals is recommended. To put in the butane cartridge make sure the regulator is tightly closed; unscrew the red container , insert the cartridge into it and screw it all the way back in. Fill the yellow container with the liquid needed for treatment by filtering it if there is any impurity, then screw the container tightly to the handle. Place the ferret on a flat surface, light a match by bringing it close to the metal guard open the gas valve using the gas regulator. Ignition should occur immediately. Allow the device to preheat for about 2 minutes. Then start the treatment. When the steam becomes moist, stop pumping by letting it escape on its own, then press the button at longer intervals. When the treatment is finished, remove the yellow container, press the dispenser button until the pump is empty and no more spray comes out, then close the gas nozzle. IMPORTANT IMPORTANT Always mount the butane cartridge away from flames or heat sources, replacement can only take place when the cartridge in use is completely empty. The ferret runs on butane gas, in 190-gram cartridges.