The invention relates to an air freshener consisting of a small box formed by coupling together two bowl portions (1, 2) that can be tightly coupled with one another, having an inner block of cellulose (5) impregnated with a perfume provided therebetween. The cellulose block (5) is separated both from the bottoms of the small box and from the side walls, by means of ledges (6) provided on the bottom of both the female (1) and male (2) parts, and by means of partitions (7) provided on the male part (2) near the side walls thereof. The small box has windows (9) for taking in air and (8) for letting out the air impregnated with the perfume contained in the cellulose block (5). On the outside, the small box has conformations that define a dovetail joint (10) for securing a clip (11) which, when released from said mounting formed by the conformations (10), capable of being coupled to an outer recess in the bottom of the male part (2).El ambientador está constituido por una cajita formada mediante el acoplamiento entre si de dos partes (1, 2) a modo de cazoletas acoplables ajustadamente entre si, y entre ellas un bloque de celulosa interno (5) impregnado de un perfume. El bloque de celulosa (5) queda separado tanto de los fondos de la cajita como de las paredes laterales, por medio de resaltes (6) previstos en el fondo de ambas piezas hembra (1) y macho (2), y mediante tabiques (7) previstos en la pieza macho (2) en proximidad a las paredes laterales la misma. La cajita cuenta con ventanas (9) de entrada de aire y (8) de salida del aire impregnado del perfume contenido en el bloque de celulosa (5). Exteriormente cuenta con unas conformaciones determinantes de una cola de milano (10) para sujeción de una pinza (11) que liberándose de ese soporte que forman las conformaciones (10) es susceptible de acoplarse en un rehundido externo del fondo de la pieza macho (2).