Industrial Air Purifier Appraisal

QT Tornado QT Thunder-24 Ozone Generator

This is a heavy-duty portable ozone generator, specifically the QT Thunder-24 model manufactured by Queenaire Technologies. The unit features a rugged steel housing with a beige outer frame and a dark charcoal or black faceplate. On the front panel, there is a circular slotted vent for airflow, a green 'Ozone On' indicator light, and a built-in digital programmable timer on the bottom left for automated operation. A thick grey power cord is visible extending from the back of the unit. The top of the device shows two prominent brownish stains or adhesive residues, likely from prior labeling or usage in a industrial environment. There is visible wear consistent with professional use, including surface grime and minor scuffing on the metal casing. This model is designed for high-output air purification and odor remediation, utilizing corona discharge technology. Based on the digital interface and design, it likely dates from the early to mid-2000s. The unit appears to be a professional-grade tool used for cleaning smoke damage, mold, and persistent odors in commercial settings.