A device for delivering a predetermined amount of at least one substance to a body orifice of a subject includes a) a container for containing said at least one substance; b) a delivery end for placement in proximity to the orifice, the delivery end being in fluid communication with the container; c) a valve mechanically connectable to said container, characterized by at least two configurations: (i) an ACTIVE CONFIGURATION in which said valve enables delivery of predetermined amount of said substance from said container to said body orifice via said delivery end; and, (ii) an INACTIVE CONFIGURATION, in which said valve prevents delivery of said predetermined amount of said substance from said container to said body orifice; d) a trigger mechanism adapted to reconfigure said valve from said INACTIVE CONFIGURATION to said ACTIVE CONFIGURATION, and vice versa; and e) a fluid tight chamber.

A device for delivering a predetermined volume a substance within a body cavity. The device includes: at least one predefined volume sized and shaped to contain a predetermined volume the substance; a delivery end in fluid communication with a container; and at least one valve mechanically connected to the container and configurable between an active configuration in which the valve enables delivery of a volume of the substance and an inactive configuration, in which the valve prevents delivery.

An atomizer is provided. When the atomizer provided by the invention is used, a fan blows air to a water outlet tube, part of the airflow in the water outlet tube passes through a pressurizing tube to enter a water tank to gradually increase the air pressure in the water tank, and liquid in the water tank is pressed into a water inlet tube under high pressure, flows into a guide tube along the water inlet tube and is sprayed out of the guide tube in a direction away from the fan; after flowing out of the guide tube, the liquid is blown out by the airflow blown from the fan into the water outlet tube on the periphery of the guide tube; and the fan is used for blowing air to the water outlet tube and increasing the pressure in the water tank.