State of California Certified Emissions Test
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State of Georgia Certified Emissions Test
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State of Texas Certified Emissions Test
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State of Washington Certified Emissions Test
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NEW - UK Exhaust Emissions Test

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UK EMISSIONS TEST RESULTS NOW AVAILABLE

Even if you are not interested in fuel economy, consider the drastically lowered emissions factor for a cleaner environment. One of these tests [Georgia] was done on a 17 year old vehicle with over 170,000 original miles without any mechanical repairs or adjustments and also on a 13 year old vehicle with 296,000 Km on the odometer in Australia.

Facts you should know...
It's not the HHO that makes the engine run. It's what the HHO does to the inefficient petrol concerning combustion efficiency. Petrol is only about 13% efficient on average when it comes to actual power produced by the combustion process. Adding an additional fuel [Hydrogen] and oxidizer [Oxygen] "aka HHO" causes the inefficient petrol to burn at a rate of better than 95% efficiency. That is what gives you the increased performance and horsepower and cleaner emissions from the petrol which is now being supplemented by the HHO. It's not the HHO; it's what the HHO does during the combustion process to the petrol. Simply explained, if you increase the efficiency of a fuel by supplementing it with an additive that enhances its production of energy through combustion, it takes less fuel to do the same amount of work.