This is one of the properly designed and manufactured backpack vacuum cleaners in the market. It makes vacuuming much more efficient and much less tiring. There is less wear and tear on the janitor. There is no pushing or pulling of heavy weights. Employees vacuum better with the backpacks, especially in the cubicles. Backpack vacuums dramatically improve worker productivity. Well-respected scientific institutions have thoroughly tested the performance of backpack vacuum cleaners and have reached some very interesting conclusions. When they compared the cleaning ability of backpack and upright vacuums they found that upright vacuums, including two-motor units, removed between 87.9% and 94.9% of soil while backpack vacuums removed between 91.3% and 96.1%. Their test also showed that backvacs were not ergonomically (biochemically) detrimental in sustained use and a metabolic assessment indicated that they consumed only half as much operator energy as uprights for equal amounts of cleaning. Studies conducted by independent testing organisations demonstrate the many advantages including superior cleaning efficiency and reduced operator energy consumption offered by backvacs. 							
Special features: 			
The flexible should straps and ventilated back supports are ergonomically designed for maximum comfort. 								
The shoulder straps and waist harness can be infinitely adjusted to give total support in all operations. 								
Disposable sealed paper dust bags are available and together with the reusable cloth dust bag give optimum dust retention. 				
Cable restraint protects the electrical cable from stress and damage. 				
Power cable can be easily replaced. 				
Specification: 				
Overall size of the unit itself is 31cm X 27cm X 54cm;				
120VAC/1200W				
Weight of the main unit on the back is 4.9 kgs;				
Airflow 50 L/S, vacuum 2.5 Kpa, noise level 72 dBA;				
15M long replaceable power cable;				
4L cloth dust bag and paper dust bag;				
4-filtration system;				
HEPA filter (option);