The present specification relates generally to spraying devices and more specifically to a spring-loaded portable spraying device for dispersing liquids without electricity or gas propellants and a related method. The spring-loaded spraying device comprises at least one canister assembly, wherein each canister assembly comprises a canister; a rod partially contained within the canister; at least one spring, wherein the at least one spring is coiled around the rod; and a spring-locking mechanism; a canister recipient, for receiving the at least one canister assembly; at least one fluid channel in communication with the at least one canister and extending through the canister recipient; a valve within the at least one fluid channel; a trigger assembly functionally connected with the valve; and a handle connected to the canister recipient.

A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.