Ozone generators can be VERY harmful if used to their full potential, but do not listen to all the hype saying all ozone generation is bad for you. You can do things like letting the generator run 2 minutes an hour and that alone will make a noticeable difference in smell while giving you no health risks. Ozone is in the air you're breathing right now.
Anything over 600mg / hour of ozone will being to cause throat irritation, head-aches, and possible chest pain.
Most QUALITY air purifiers include multiple functions, such as ionization and ozone generation. These emmit ozone @ about 360mg / hour which is quite safe, and can be reduced if you wish.
I am not a salesman, or work for any ozone generation company, but I am someone who is logical respects science, and some of these claims I have seen on this site, saying even small amounts of ozone is dangerous is ridiculous, it is all around you and it's inside your lungs.
If you chose to get an ozone generator just be sure to read the instructions carefully and I personally would never let it get above 400 mg / hour, it's better to be safe sorry.
@ I have a question for you regarding UV ozone generator Im looking at getting the zen living Ozone generator. It is rated for 3500 square feet but only puts out 360mg/h would that be safe to use in a 12x12 area?