The MP-8000 Ozone Generator paired with an oxygen generator gives up to 8000 mg/hour of ozone. The oxygen generator allows for a more pure form of ozone. Use a regulator for 2-4 L/minute oxygen gas flow. Without an oxygen generator, expect about 1/5 of the ozone. Special features include 15-minute to 4-hour adjustable timer. The MP-8000 Ozone Generator comes with a stainless steel handle for portability. It also comes ready to use, with 8-feet of flexible polyurethane tubing, 8-feet of ozone resistant PTFE tubing, two 2" oblong diffuser stones, spare fuse, and a replacement fan filter. Dimensions: 9.8x15x10 inches, 18 pounds. Energy consumption is 145 Watts. Ozone concentration is 0-45 gr/m3. NOTE: Turn the knob counterclockwise to set unit for continuous use.