Nalco through differentiated services and technologies that save water and energy, enhance production and improve air quality while reducing total costs of operation. Essential Expertise for Water, Energy and AirSM describes both the vital role we play for our customers and our shared commitment to sustainable development. Our knowledge, services and experience in a variety of industries are the essential expertise we bring to customers that results in cleaner water, less industrial use of fresh water, energy savings and improved air quality - all while helping our customers save money and be more successful.