The core activity of Crystal NTE SA is the development and distribution of products and solutions for the treatment of air and water, as well as for the optimization of energy consumption. Specifically, this includes: air treatment through ionization (Système ionair), electrostatic filters (Filtre électrostatique type FE) and UV radiation (INDU & ZERO); water treatment through vivification (EWO) and decalcification (Narewa); and optimization of energy consumption through kinetic energy (KPP Centrale d'énergie Cinétique) and natural energy sources (MAXiiMUS). The company offers these solutions to various target groups, including companies, technicians, and private individuals.