A dispenser (30) for dispensing volatile material by evaporation comprises a reservoir (32) for containing volatile material to be dispensed. The dispenser further comprises a dispensing screen (10) for dispensing volatile material by evaporation, the dispensing screen comprising a sheet of material (16) having continuous first and second edges (21, 23) and forming a continuous loop of material extending between the first and second edges. Communicating means can carry volatile material from the reservoir to an in use upper edge of the dispensing screen. The material of the dispensing means is acutely angled to an in use vertical axis of the dispenser.一種用於藉由蒸發來分配揮發性材料之分配器(30),該分配器包含用於容納將要分配之揮發性材料的一貯存器(32)。該分配器進一步包含用於藉由蒸發來分配揮發性材料之一分配屏(10),該分配屏包含一材料薄片(16),該材料薄片具有連續的第一邊緣及第二邊緣(21、23)且形成在該第一邊緣與該第二邊緣之間延伸的一連續材料迴路。連通機構可將揮發性材料自該貯存器載送至該分配屏之一使用中的上部邊緣。該分配機構之該材料與該分配器之一使用中的垂直軸成銳角。
