Air scrubbing is a necessity when you’re working in spaces that include dust, drywall, pollen, mold and other debris. An effective air scrubber like the Air Shield 550 by BlueDri™ is available in grey and other colors, and it can help capture miscellaneous debris as small as 0.3 microns. The Air Shield 550 operates at three different stages, each offering its own unique contribution to purifying your air. The pre-filter and optional second stages capture larger particles, while the HEPA filter stage captures the smaller particles in your zone. As with all BlueDri™ products, you can count on quality and durability when you invest in the Air Shield 550. This product is designed to perform day in and day out in tough commercial and industrial environments, delivering the air scrubbing performance your team needs to focus on the job at hand. This is a unit that is designed to boost your job performance and to deliver dependably over the long-term — like adding another reliable member to your crew.