Featuring Rotational Airflow helping to remove dust and debris from the airflow for longer tool life. Extracts dust and debris from the airflow before it ends up in the filter and blocks it. This is especially good for users that are cleaning a lot of fine dust e.g. concrete dust. The first rotational airflow will extract a lot of dust from the airflow (90-95%). However some fine dust e.g. sand, concrete dust, etc will remain in the airflow and will be heading towards the filter. The 2nd stage with rotational airflow will then remove a lot of the fine dust that would have ended up in the filter.