Menu Expert for NOx reduction for all applications Your partner in SCR, catalyst and NOx treatment technology Whether cogeneration power plants, industrial incineration, marine propulsion systems or greenhouses are involved: We accompany you starting with the initial idea, comprising successful realization and guaranteeing the continuous support of your projects. „For a cleaner future we are focusing on environmental protective solutions for the maritime and stationary industry.“ H+H SCR Technology for lower NOx emissions NOx Reduction by SCR Catalyst on Ships Marine SCR Systems With almost 30 years of experience we serve more than 300 ships in service with more than 800 engines. » Learn more Your effcient partner for industrial applications Industry Stationary combustion engines are subject to strict legal guidelines, demanding the implementation of efficient measures to reduce emissions, while maintaining the best possible levels of performance. » Learn more Maximize crop and plant growth CO2 - fertilization The H+H fertico2 System cleans the exhaust gas from your engine, so it can be used to fertilize your plants. » Learn more Personal and reliable Service Our personal support and service does not end with the sale of a SCR system. Our competent and reliable service engineers will always take care of your needs. » Learn more Perfect planning from the very beginning H+H – Consulting & Planning For perfect results, we focus on excellent planning. For us, customer satisfaction begins with consultation and with detailed planning, that takes your requirements into account from the very beginning. This is how we create innovations and solutions that are perfectly customized to your needs and guarantee reliability for our customers. This is ensured by competent employees who support you throughout the entire project phase and combine extensive know-how with the best advice. » Learn more Your career at H+H It is a pleasing circumstance, but it also brings challenges: H+H is growing! » Learn more ContactImprintDataprotection © H+H Engineering & Service GmbH H+H SCR Technology for lower NOx emissions