Bests & Worsts Reviews from Amazon

This thing works just fine. Installed it in no time and did a reset as instructed and it works like new. No flashing lights. I have to ask, though, why are we replacing a carbon filter in a machine the produces activated oxygen for in the first place? The nature of this machine is supposed to be producing a three atom molecule (ozone) into a colorless gas with powerful oxidizing properties, formed from oxygen extracted from the water (H2O) in the reservoir of the machine. The carbon filter that is being replaced and used to refresh the air circulated in the cleaning process looks to be capable of lasting virtually for a very long time. I replaced this filter and removed the old one to see if I could determine if it was clogged and it looked like it hadn't been used at all. This wad of carbon shoved into the little canister is basically cleaning clean air...made clean by the ozone emitting from the design of the machine during the run procedure. Have I simplified this too much or am I missing a step. I don't like germs or bacteria. But, at 30 bucks for a wad of carbon shoved into a plastic canister along with a little one-way valve, are we being stiffed a little? Maybe along with this order, we should expect a happy meal or the toy anyway. Just ask'n? I might let this replacement procedure go for an extra 12-18 months or so and then replace it. I see no harm in this.