I have used many O3 generators now and have gotten good at using them. When you turn on this unit there is a faint smell of ozone which I was looking for as you don't want it to be strong. It doesn't really take long. Now it should be noted that my fridge had no odors and I put it in to help with general cleanliness. While it seems to be working. Battery life isn't as good as expected and I'm not sure if it's actually pulsing UV light. The suction cup keeps it in place in my fridge. Possibility of replacing the UV or O3 electrodes, I will say that it will be effective for about a year. Still better than baking soda.
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