A Tee connector (100) for supplying aerosol includes: a Tee-shaped tube (1) having a transverse tube portion (11) and a longitudinal tube portion (12), the transverse tube portion (11) having inlet and outlet ports and being formed with a top opening (111) and a bottom opening (121), the bottom opening (121) being aligned with the top opening (111) and being connected fluidly to the longitudinal tube portion (12)； a cover (2) closing detachably the top opening (111)； a valve (4) including a valve plate (41) which is movable downward to close the bottom opening (121) and upward to open the bottom opening (121)； and a spring (3) disposed within the transverse tube portion (11) and urging the valve plate (41) so that the valve plate (41) is moved downward to close the bottom opening (121).
