An LED lamp is provided with at least one LED each including an epoxy lens, cathode and anode leads a reflective cup, a LED chip, and a wire bond a housing for accommodating a circuit board, the at least one LED mounted on the circuit board, and a fan openings on the housing groups of photocatalyst agents coated on areas lit by the LED chip wherein the photocatalyst agents are TiO2 having a particle size in the range of 50 and 300 nano meters and layers of fluorescent substance coated on areas lit by the LED chip wherein emitted light impinges the layers of fluorescent substance to generate fluorescent light, and wherein white light is generated when emitted light mixes with the fluorescent light. The LED lamp has the functions of disinfection, deodorization, and mildew proofing.
