Oxyhtech (Oxyhydrogen Technologies SL), based in Navarra, Spain, develops and manufactures eco‑friendly cleaning equipment for internal combustion engines. Their flagship offerings include advanced engine carbon cleaners—using oxyhydrogen gas generated through water electrolysis—and DPF/particulate filter cleaning machines, suitable for all fuels and engine types. These in‑house, tech‑driven systems provide fast (20–60 min) removal of soot and ash, restore power, reduce emissions, and minimize energy use. Backed by Wi‑Fi/OBDII connectivity, global distribution in 50+ countries, and strong workshop support, Oxyhtech serves a niche in sustainable engine maintenance for automotive, agricultural, marine, industrial, and heavy‑duty applications.