Review on Ivation HEPA Air Purifier & Ozone Generator 5-in-1 – Ionizer & Deodorizer for spaces up to 3,700 Sq/Ft. All-inclusive with HEPA, Carbon, and Photocatalytic Filters, UV Light and Negative Ion Generator. by Dana Wood

I just received and hooked up this air purifier. I originally intended to use this device in a specific room. If you want to use it for "whole house" cleaning, the instructions allow you to place the unit within 10 feet of your air exchange. I bought it for my office which is about 1800 square feet. I placed it in the same room as my AC panel (it also serves as our filing room), closed the door and turned both knobs on the unit to the "high" position. Less than 10 minutes later I noticed that my eyes were "restless" and I could smell the ozone. I was amazed at the strength of this unit. I just turned the ozone slider to medium and will see how it levels out for my specific building and needs. In short, this little device quickly blew the air clean. It smells just like when it rains. I can't say anything about the durability yet, so I'll have to update my rating over time. Still, it makes a good first impression.