There are many things that should be present in a good backpack
vacuum cleaner.

It should be light in weight, with even weight distribution, and
the noise level must be as low as possible. At the same time, the
power needs to be sufficient for fast, effective cleaning, and
the dust bag must be large enough to avoid constant changing.
Without these basics, a backpack vacuum cleaner is uncomfortable
and impractical to operate. 

The GD5 backpack vacuum cleaner meets these criteria and more.

There are many things that should be present in a good backpack
vacuum cleaner. It should be light in weight, with even weight
distribution, and the noise level must be as low as possible.The
Nilfisk GD 5 backpack vacuums surpass all criteria, making
fast productive cleaning at a price that won’t bust your budget.

• User friendly and ergonomic design for flexible cleaning
• 15 m detachable cable with safety release saves time
• Low sound level for operator comfort and cleaning in noise
  sensitive areas
• Good filtration with HEPA filter option
• Suitable for left or right handed use
• Fully recyclable components used for reduced environmental
  impact
• One year commercial warranty