The SEBO Essential G Exhaust Filter 2846 is part of the filtration system that works with Essential G Upright vacuums. This filter is designed to trap fine dust in the exhaust air released by your vacuum during cleaning, before it is emitted back into your home. This filter also allows proper filtration that increases the life expectancy for your vacuum by protecting your vacuum motor. This is great news for users with allergies or asthma conditions