Abstract: Comprises a vessel (1) that houses the active liquid substance to be diffused, such as a fragrance, insecticide or other, through a breathable membrane (2) that closes the vessel (1) and comprises a porous part (3) placed near and parallel to the breathable membrane (2) in order to prevent the deformation of the membrane (2) when a vacuum is generated as the vessel (1) is emptied. The porous part (3) has a number of openings (4) through which passes the liquid to ensure its contact with the membrane (2) at all times for a homogenous evaporation and it occupies part of the volume of the vessel (1), absorbing the active substances, the non-volatile substances remaining in said porous part (3) after the vessel (1) has no more volatile components.

Abstract: An evaporator device for active substances is designed for using active substances established in a paper tablet or the like, or in a tray with a semipermeable membrane, in gel form, comprising a base body with a U-shaped profile inside coupled by insertion to a support provided with two housings and, the former adapted in size and shape to receive within it a tray and the second to receive a tablet, so that both the tray and tablet can be placed in the same support opposite the heating surface of the device. This allows using the device equally with either format of the active substance. The device also includes a safety mechanism comprising teeth that lock in the closed position, preventing or making it difficult for children to displace or extract the support from the casing, that requires pressing inwards on two lateral oppposing areas of the casing to open.

Abstract: The invention provides a method to sterilize or inhibit microbial growth in the air and to aromatize and to serve as an air freshener, based on the emission of particles to the air of a composition based on essential oils and their mixtures with glycols in differing proportions. According to the method of the invention, the particles emitted to the air to be sterilized and aromatized are generated by evaporation of the liquid composition using a wick indirectly heated on its upper part.