air purification units, namely, a combination air purifier, air ionizer and air cleaning unit for removing impurities in the air

Electro-medical apparatus for producing small biological active ions for assisting breathing, for relief of pain, [ for training breathing techniques] and for use in respiration; electronic medical apparatus for producing small biological active ions; medical apparatus for producing small biological active ions for assisting breathing; medical apparatus for exercise that produces small biological active ions; [ medical apparatus for producing small biological active ions for the relief of pai...