UV Sanitation

Where did you get that Fact?

It is the penetration level of UV through water, or humid air that is changed by refraction and absorption. So you will need a higher level Light source to achieve the same effect through water or humid air. Effectiveness will stay the same. Efficiency Will be lower.

Wangito.

I know what you're try to say. Submersible UV units only penetrate a few inches through the water so to get sterilization all water must flow close to the light. If the humidity is high enough to condense on surfaces or the lamp window, you will need to drastically reduce the distance between lamp and objects to be sterilized.

I am sanitizing a surface. The dosage will be 32,000microwatt seconds per sq cm. The distance from the surface to the light is 24 ". I am considering PUV for time efficency. Do you know how hot the surface will become.

UV effectiveness is affected by turbidity. The more turbid the water, the less effective the UV unit is. Same goes for air. The clearer the air, the more effective the system.

All kidding aside, which is why the food industry just cut to the chase and used X-rays.