ya i have when i trim and i use uv light in the water but the worst part is my lung hurt and my thoat hasnt recoverd might have cancer i will see on april first dont do it... use filters i seen a few sights that claim its cool and you'll be ok man i really feel like shit and my lung hurts i got to ozone geniees and i run usto run in the room and one in the dry space and it is no fucking joke health over money gee.. health over money nothing is worth your health im not lien... oxegen molicul laches onto your lung tissue and something happends just like peroxide when 29 32 grade your hands or fingers turn white, well breath that shit and your can feel it in your beathing and in your voice.. dont do it for realz..