In HHO Plus® Ltd we take pride in our work

HHO Plus is a European manufacturer of eco-friendly hydrogen-based equipment for fuel economy and reduction of polluting emissions on cars with internal combustion engines, diesel or gasoline.

Our product range includes engine decarbonizing stations that clean all types of engines by removing carbon buildup and significantly reducing polluting emissions.

All our products are made in Europe and are distinguished by their quality, efficiency and environmental friendliness

decalaminage moteurs

CEO – Production and Finance: Frederico Ribeiro

CEO – Shipping and Marketing:Miguel Moleirinho

Technical and Customer Support: Sandra Branquinho

Production Department: Telmo Lavos

You are welcome to visit us in our facilities! Thank you

Engine Machines

4 years warranty


Quick delivery


Satisfaction or refund

hho technology

Efficient and reliable engine machines

Innovative hydrogen-based treatment that restores your car’s power and performance… reduces fuel costs, Reduces repairs and pollutant emissions!