Humidifiers are used to increase the humidity of rooms, ware houses etc. as per the desired levels of humidity. This works by means of evaporation and hence also are known as evaporation humidifiers. Trotec, Germany manufactures humidifiers of various capacities from portable models to stationery models. The applications include keeping right humidity for storage of vegetables, fruits dried fruits etc. which need to be stored at a certain humidity.more……….