Feb 20, 2014
Bag less vs. Bagged. Bag less vacuum manufacturers often claim that bagged vacuums lose their suction power as the bag fills up. Not so with InterVac, the ribbed internal body allows the suction power to move up as the bag fills. This results in no loss of suction power and also ensures the bag is efficiently filled, approximately 4 litres (1 US gallon) of HEPA filtered compacted dirt, bugs, germs and grime fits into a full InterVac bag.