To answer this question in short, it's very dangerous IF AND ONLY IF you don't use your intelligence! Hydrogen or any fuel system using hydrogen is not something to play with! I've actually heard of some people that have tried to ignite hydrogen for fun... YIKES! "But I just wanted to see if it would light-up," one guy explained. Of course it ignites, anyone home? Hydrogen will absolutely combust if you put fire of any type to it and boy will it spread quickly.

If you look through the "Run your Car on Water" manual that I used to convert my car, it was littered with safe notes for areas that had the immense capacity to harm you or explode your vehicle.

Alright, with that behind us, Hydrogen-On-Demand technology is not anymore more dangerous than conventional car technologies that involve fuel, cooling, etc. For example, everyone knows the radiator is a must to cool-down regular engines. Without it's use, your car would smoke till it dies!

Furthermore, if you make the decision to open the radiator cap when hot, you will get injured, correct? The danger is not in the radiator, it's in ignorance and carelessness that comes with a lack of common sense. When it comes to this, there are proven safety guidelines and it's always important to apply them.

When undertaking this easy conversion of your car to make it run on water, follow the extensive guidelines in the conversion manual. If you do this, it would be very hard to hurt yourself. I've never heard of or experienced any explosions or meltdowns. For safety, follow the step-by-step manual word for word!

Allow me to provide you a real-life example. In one of the chapters on installation, you will observe that you must keep the output hose at minimum four feet in length in order to prevent fire dangers. Never cut it short even if the device is closer than four feet. Sure, this may waste a couple bucks, but saves loads of trouble! Every precaution is highlighted in the extensive "Run your Car with Water" conversion manual so it's very hard to miss.

Important to note, Hydrogen-On-Demand and Water Fuel is not similar to stored Hydrogen! In a normal system, it uses all the hydrogen that is provided immediately. Nowhere is there a hydrogen storage tank to explode in case of a car accident. This water fuel technology has proven to be MUCH SAFER than hydrogen cars or propane gas cars and trucks.

Contrary to popular belief, it is not hazardous for your car / truck at all. Many have noted that they have seen their gas mileage increase by as much as 100% after implementing the hybrid conversion, too.