Profile: Air Zone, Inc. is a manufacturer of ozone generators. We deal with ozone generators, ozone air purifiers, air purifiers, ventilation systems and inspection lamps. Our Air-Zone® XT-120 has permanently mounted ozone elements inside the unit that produce pure ozone with no measurable nitrogen oxides. They are designed for continuous or timed air cleaning & odor control in bedrooms, offices, and similar areas. The EZ-1X ozone meter is meant to monitor ozone levels in occupied spaces. It can be used to monitor ozone levels where ozone is meant to be kept at recommended air purification levels around humans & animals. It monitors ozone levels by displaying them on a multi colored bar graph.