Imagine how convenient it would be if your HEPA construction vacuum could clean its own filters and didn't require the use of collection bags. That's the idea behind CDC Larue's PB 550 Pulse-Bac Vacuum. The machine contains three filters – two primary and one secondary. An internal mechanism prevents the primary filters from clogging by reversing the flow of air through one and then the other. This quick burst of air knocks off all dust and dirt – without interrupting suction, because one of the filters is always working. The secondary filter is HEPA-certified, and the vacuum is fully EPA- and RRP-compliant.
¦ Price: $900. 866-954-9700. www.pulsebac.com.