Designed for sampling high-level VOCs as well as light and permanent gases, the gas bags feature valves with a hose connection for attaching tubing. Low-bleed assembly inside the valves prevents sample contamination from the septum. With chemical inertness and resistance to abrasion, the correct film type will meet procedure needs. The gas bags meet a variety of sampling applications including stationary sources emissions, workplace atmospheres, indoor air quality, and breath analysis.