Working with Deuter, leading creator of backpacks for mountain climbers, Tornado has redesigned backpack vacuum cleaner harnesses so that they are exceptionally comfortable. You’ll feel the comfort the first time you put on Tornado’s Pac-Vac Aircomfort Backpack. This specially made harness is also breathable. Air escapes the harness on three sides, keeping the user comfortable and cool, improving worker morale and productivity. In fact, the advanced harness and vacuum technology allow the Aircomfort to clean more than 7,000 square feet per hour.