Mike I agree with that 100 %
Nikki
Yes that is bad. Think of the a unit that is putting out 225 mg /hr. Actual delivery rate of O3 is base on air flow and O3 generated (we will use 6500 ppm for our example below). That means that unit ratings of say 100 mg / l or 250 mg ./ l is almost useless. An air pump with 100 l /hr is going to be different than an air pump of 200 l / hr. The higher the flow rate of air the less the concentration will be.
If a unit used a 1.5 l / min air pump ( 90 l /hr about 25 gal / hr) and generated 6500 ppm ozone the unit would be rated around maybe 225 mg / l ozone. So every hr there is 25 gal of air going in your room at 225 ppm. But the danger level is oh say .1ppm , so . 1 / 225 = 2250 x 25 gals of air = 56,250 gals of air would have .1 ppm O3 in 1 hr. Is your room that big ? Ozone is also heavier than CO2, so it would sit more and move less. So, pretend you fall asleep and the O3 line falls off
That is very bad
0.125 ppm room exposure for 1 hour (VERY UNHEALTHY)
At ozone concentrations from 0.125 to 0.404 ppm, sensitive people experience severe respiratory symptoms and impaired breathing.
and
0.080 ppm produce adverse effects on human health such as PEFR decrements in asthmatic children
So, you need to make sure of all connections, hoses, etc. are of the right material and attached properly so this does not happen. We must protect units, attachments and fittings form things like kids, dogs and cats that
may pull them off. When these precautions are met ozone is just fine. The air vent on the skimmer also needs a mounted cup filled with GAC. All water leaving the skimmer must be passed over GAC, to inhibit the formation of bromine bleach.
I like Sander's as it is a German company. They have been in this hobby for 30 years and specialize in hobby equipment. That have researched more on ozone in this hobby than anybody. It is to bad they still don't have prints of their tech manuals that explain ozone and what it does.
http://www.aqua-sander.de/index.en.html
