Cosmetic apparatus using ultrasound for performing aesthetic skin treatment procedures; Electric hearing aids; Electronic aesthetic skin treatment devices using light emitting diodes, namely, infrared, red, orange, yellow, green, and blue wavelengths for generating light rays; Electronic light therapy apparatus for the skin; Lasers for the cosmetic treatment of the face and skin; Lasers for the cosmetic treatment of the face, skin and hair follicles; Medical apparatus for measuring skin hydration; Medical skin abraders; Phototherapeutic apparatus for medical purposes, namely, a LED (light-emitting diode) light source for medical and aesthetic skin treatments; Respirators for artificial respiration; Sanitary masks for medical purposes