Helium Diffusion Sampling Services

The HDS Personal Monitor simplifies the monitoring of chemicals in the workplace. A breakthrough new technology based on helium diffusion yields a sampler that is small, light weight, cost-effective, universal, and defensible. Above all, the HDS Personal Monitor delivers highly reproducible results unaffected by factors that create errors in other diffusive samplers such as matrix concentrations, varying humidities, and fluctuating face velocities. An HDS sample is collected based upon the higher diffusion rate of helium relative to air, creating a vacuum that pulls air in as helium escapes. A surrogate recovery compound is added to every HDS Personal Monitor to substantiate the collection of a proper sample in the field as well as to prove effective recovery during laboratory analysis.