Microfleece vacuum cleaner bags offer superior performance compared to traditional paper bags. They filter out more fine dust particles and completely prevent the expulsion of house dust mites, making them ideal for allergy sufferers. The package includes four vacuum cleaner bags and one filter. The bags are equipped with a rubber seal that ensures a good fit and prevents the motor from drawing in outside air. This maintains the vacuum cleaner's performance and prevents dust from flowing back into the dust bag compartment, thereby extending the vacuum cleaner's lifespan. The multiple layers of the bags reduce the amount of dust that reaches the motor, thus protecting it from damage. These vacuum cleaner bags have been tested and approved by TÜV, ensuring optimal functionality of your vacuum cleaner.