Bag vacuums are the best choice for those who suffer from allergies and other respiratory conditions. On the one hand, they completely separate dust mites and other allergens from the operator of the vacuum cleaner during its operation, precisely thanks to the existence of the bag.
In addition, when it's time to change the bag, the whole process is completed in one movement, again without the user having to come into contact with its contents, while at the same time reducing the risk of spilling its contents on the floor.
Finally, in a vacuum cleaner with a bag, you do not need to clean its filter, since it is usually integrated into the bag.