How Long to Run an Ozone Generator
There are a lot of ozone generators on the market today. It can be difficult to find the right one, but you have to keep in mind the size of your room and how much you need to run it. Depending on what sort of odors you’re trying to remove, you may have to run it a bit longer than normal.
The average time to run it is about 3-6 hours per room, so if you have multiple rooms, it might take a bit longer. If you’re doing an entire house, you might need to run it up to 30 hours. Ozone is also a bit heavier than the normal gas around you, so it will trickle down through the other rooms if your home is multiple stories.
There's more info on this here: http://www.damagecontrol-911.com/ultimate-guide-to-ozone-generators-safety/
However, keep in mind that ozone can be dangerous. If you breathe it in, it can cause lung irritation and throat itchiness. It can even cause headaches and fatigue. Never breathe it in if there are concentrated amounts. It’s also never a good idea to be in a room while an ozone generator is running.
This goes for pets and plants, too. Anything that is living can be affected by ozone, so be sure to have everything and everyone vacate the room. People, pets, and plants will be affected by ozone if you don’t!