Speed kills... dust mites
The Multi is fitted with a 3,000 RPM rotating brush bar and has very high airflow (38CFM) which translates into exceptional cleaning performance. When you mix agitation, airflow and suction together in the perfect ratio you get optimum pick up from your machine, which is why the Multi is able to collect fine particles and dust mites with ease.
Don't settle for anything less, choose the Multi if you want real power!