Sensidyne® BDXII™ Abatement Air Sampler The BDXII™ is a compact, lightweight, rugged and reliable Air Sampler. It's easy to calibrate, with a flow rate of 0.5-3 LPM. Anti-tamper control panels add security and the internal components of the BDXII™ are sealed from dust, fibers and moisture for long, reliable service. The BDXII™ is powered by a rechargeable battery pack. Replacement battery packs are available.