ProLevel Filtration w/three levels of filtration: 522 sq in total area. ProLevel filtration with HEPA media: captures 98.73% at .3-.5 microns per ASTM 3150.
Proteam 107252 Proforce 1500XP Hepa vacuum is the most rugged and high-suctioning vacuums. If your people can't stand the backbreaking job of having to do multiple passes caused by cheap vacs, they'll love this machine. More importantly, Proforce traps dangerous spores, dust and pollen.
HEPA filtration. When safety and health of others (including your own) matters most . . . .