Patent ID: 7045099

Claim:
A method for the treatment of air of at least one room by air ionization in an ionization apparatus comprised of electrical discharge ionization tubes or corona discharge tubes, the method comprising the steps of: measuring values of: oxidizable air components in the air to be treated; relative humidity of the air to be treated; flow velocity of the air to be treated or flow volume of the air to be treated; ozone level in a supply air supplied to the at least one room; and intensity of oxygen ions; and determining a level of ionization power of the ionization apparatus based on the values measured by the means for measuring; lowering, when a predetermined value of the ozone level is detected, the ionization power, and, when the ozone level continues to increase after the ionization power has been lowered indicating an external source of ozone, initiating a decomposition of ozone in the ionization apparatus by changing a time period of an applied periodic alternating voltage, supplied in the form of alternating pulses or packages of alternating pulses of a preset number or a combination of alternating pulses and packages of alternating pulses of a preset number.