Esco Airstream Horizontal Laminar Flow Clean Bench offers proven protection for your samples and processes. With over thousands of units in use worldwide, this model offers a sensible balance of quality, performance features and cost-effectiveness. Like all Esco clean benches this model features many key innovations for which Esco is recognized for: mini-pleat separatorless ULPA filter technology, the best product protection in the world, external rotor motors, superior filter mechanical construction.