A filtered air supply assembly includes a filtration unit that can be worn on a user's clothing. The filtration unit including a plurality of filters each is integrated therein and each of the filters is filter air that is pumped by the filtration unit. A mask is provided that can be worn on the user's face. A mask air hose is fluidly coupled to the mask and the mask air hose receives air from the filtration unit thereby facilitating the user to breathe the filtered air when the mask is worn. A nose air hose can be fluidly coupled to the filtration unit thereby facilitating the user to breathe the filtered air when the nose air hose is positioned in the user's nose.