Hands-free and out of the way
The back pack allows the SE400 fan unit to be worn on the back. The unit sits high up between the shoulders for great comfort and superb balance. As the breathing hose is attached to the shoulder strap, both arms are completely free. Note the curved shape of the fan unit attachment: this means that the fan sits well away from the wearer’s body, thus eliminating heat and discomfort. The shoulder straps of the back pack are soft but sturdy, and feature fasteners for the breathing hose and other accessories, such as an SE-TALK miniature loudspeaker.