Miele floor tools and accessory cleaning brushes are inspected just as thoroughly as the vacuums themselves. They are tested on miles and miles of different flooring, and must tolerate a fall test, in which the floor tools drop from a height of nearly three feet over and over again. Only when the floor tools endure and pass this test, are they approved for production.

A malfunctioning cable reel assembly is frustrating, which is why Miele cable reels are put through a very aggressive quality assurance exam. The cable is pulled out and retracted over 10,000 times as a part of Miele's approval process. With this assurance, you can be sure your cord reel will function reliably and safely for years.

Miele vacuum hoses are among the best in the world! Each production lot is subjected to countless bend and stretch tests in our laboratories. To test the endurance of the hose, a vacuum cleaner, plus an additional 5kg weight, (that's over 11 pounds) is stretched thousands of times. The hose must pass undamaged before being approved for inclusion in a Miele vacuum cleaner box.

Quality assurance engineers at Miele's factory test the daily challenges of the vacuum's castors, bumper strip and outside casing using a volume of different tests. For example, on the threshold exam, the vacuum endures miles of track where typical and not so typical stresses are exerted simulated door thresholds, bumps and harsh curves in order to put maximum strain on the vacuum.

Miele vacuum cleaners are tested to last a minimum of 1,000 operating hours or an average of 20 years residential use. This is only possible because of the critical Miele-made component of the vacuum cleaner: its motor. The S4, and all Miele vacuum cleaners, feature a high-output, Miele-made Vortex Motor SystemTM. The motor is capable of consistently providing top performance for 1,000 hours.

The new S4 is lightweight, only 14 pounds, and very easy to maneuver. A gentle tug is all you need to move the vacuum cleaner from room to room. The castors are designed to run smoothly over all types of flooring and to navigate obstacles such as thresholds or even its own electrical cord with ease.

If transport upstairs, downstairs or even outside is required, simply insert the floor tool into the integrated wand holder and pick the vacuum cleaner up with one hand. The hose, wand and floor tool are securely in place so no walls or picture frames should be scratched or disturbed. And, with one hand free, you can even open and close doors as you go!