Here's a link back to our conversation, since you've apparently forgotten everything that either of us said: Effects of Ozone

I'd like to remind you - again - that you've apparently never built one yourself, and shouldn't be telling others how long they can last. You're the first person I've ever heard make the claim that the filter has been used non-stop for 5 years, and hasn't lost any effectiveness. And I also never said they become 'ineffective' after nine months, I said they "begin to lose their effectiveness". After which I spend the $5 and replace the carbon, which takes a whole ten minutes.

Please don't spread any more rumors about me. I try, just as you do, to help people when I can, and MOST of what I write is based on my own personal experience... generally from goofing something up. I don't frequent any other sites, because my leisure time online is also limited... and I've found CannCom to be one of the best. Lastly, since you're obviously wondering, I'm self-employed... so it's true that I don't work 9-5, but I do work either from home or at an office roughly fifty hours per week. I'm lucky if I'm able to make 2-3 posts here throughout a typical day.

Take care, and try not to take criticism so personally. :jointsmile: