Wait what?!? Sister is avast? Man I’ve been gone a long time haha!I didn't look back in the thread, but what are you running the output from the ozone generator through? If you smell ozone in the room then that is too much. Not necessarily from a health perspective but from a corrosion perspective. It will cause any rubber or plastic that is not ozone safe to become brittle and eventually crack which could lead to the failure of some equipment. I run ozone 24/7 on my 460 and I run the output through an ozone reactor similar to this one (mine is custom built by @Sisterlimonpot who owns and operates 4th Dimension Aquatics www.4daquatics.com) https://www.avastmarine.com/products/mutiny-ozone It works flawlessly to remove the ozone before it gets into the room and I only change the carbon out about twice a year.