The present invention is applicable to the fields of spraying and chemical agent instruments, and provides a diaphragm pump sprayer comprising a housing in which a battery, a motor and a hose are arranged, with one end of the hose being connected with a sinking water inlet ball and the other end being connected with a spray head, characterized in that: a diaphragm pump for water pumping is also arranged within the housing, one end of the diaphragm pump is connected with the hose and the other end is connected with the spray head, and the diaphragm pump is driven for water pumping by the battery and the motor. The diaphragm pump sprayer provided in the present invention realizes the purpose of pumping and spraying liquid by the diaphragm pump sprayer. The diaphragm pump, which has high chemical corrosion resistance and high working efficiency, is employed as a substitute for existing gear pumps, piston pumps and peristaltic pumps in the present invention.

A hydration system maintains a ready supply of hydrating fluid within a sealed system that protects against contamination of the fluid supply and of the user in a CBRN environment. The system includes a fluid container having a removable cap that is equipped with a pressurization system that pressurizes the inside of the fluid container. Pressure inside of the fluid container drives the hydrating fluid, such as water, to an outlet in the cap and onward to a shuttle valve. In an exemplary embodiment, the shuttle valve has an inlet configured for fluid connection to the pressurized container, an outlet configured for connection to a supply line to the user's protective mask, and an intermediate port for connection to a personal hydration carrier carried by the user. The shuttle valve allows for filing of the user's individual water carrier and drinking of that fluid from the water carrier without exposing the hydrating fluid to the CBRN environment, and without requiring the user to disconnect their mask from the system.