Assay Technology is the global leader in air samplers for personal exposure monitoring. We also provide AIHA-LAP accredited industrial hygiene lab services. Our samplers are the most convenient & cost-effective way to monitor for chemical exposures, including: organic vapors, aldehydes, amines, nitrous oxide, anesthetic gases, ethylene oxide, hydrogen peroxide, and more. We also manufacture the Miller Nelson atmosphere generator, HCS-501, for control of flow rate, temperature and humidity, and we provide chemical capacity testing of respirator cartridges and media. Purchase at our website store, for a 10% discount on boxes of air samplers.