I too have the ozn-1 model generator in the pic,its a kick ass unit,i have 2 of them & my rooms are large,they keep all my odors under control too.
When i 1st bought ozone generators for my rooms i went way overboard as usual,i bought 2 different industrial models,both of them will fuk you up they produce soo much ozone so fast,i quickly learned to tone it down a notch.
The ozn-1 models are perfect & no danger at all,the biggest issue with any ozone generator will be a sore throat but can go much farther than that,the ozn-1's are perfect,they produce enough ozone & at a rate that most in homes can tolerate,i use mine a bit differently than the poster above but i love it & no side effects,they are very simple units,i'd reccomend ordering a 2nd unit as a standby or at the very least a spare bulb,if your asking about ozone generators your surely having odor problems,having a unit go out with no way to take care of the smell will be a bitch,with that being said both mine run 24 hours a day 7 days a week for clkose to a year now,they are quality units.
Heres a few pics of whats inside them,i took these pics for another thread on ozone generators.