Using this filter bag is easy. Just remove the old bag from your Pullman or Polivac vacuum cleaner and replace it with this new one. Make sure the rubber edge fits snugly in place. When using, don't overfill the bag as it may reduce the suction power of your vacuum cleaner. For maintenance, check the bag regularly for any signs of wear or damage. If it gets dirty, you can gently shake it outside to remove the dust. If it's very dirty, you can hand - wash it in lukewarm water and let it dry completely before using it again. This will help keep your vacuum cleaner working at its best and extend the life of the filter bag.