Environmental Sampling Supply, also known as ESS, specializes in the sampling and analysis of a variety of products. Established in 1988, it operates independent, state-certified laboratories that perform quality control analyses on its pre-cleaned sample containers. Environmental Sampling Supply maintains a distribution network throughout North America. It maintains an automated production system that provides clean products in a controlled environment. The company offers its products under the Preserve dm Tedlar Bags, Bubble Wrap Bags, Capsure, Cold Ice, Foam Pac, Dropule, Easy Pour, Nalgene and Ultra-Pure Blank Water brands. It provides custom container preparation and quality control testing and sampling kits for special projects. The company offers worldwide shipping capabilities. Environmental Sampling Supply s products feature chemical preservatives, air sampling bags, and bailers.