X-Nico

Dräger

Since 1941 Hans Hass used bag-on-back rebreathers originally built by Dräger for self-rescue of submarine crews (Tauchretter, like the Davis Escape Set).

Escape set

1939: Hans Hass developed from the escape set a type of rebreather with its bag on his back and two breathing tubes but no backpack box.

Hans Hass

Until the end of the war Hass lived and worked in the Filmstudios of Universum Film AG in Babelsberg near Berlin to cut and finish his film about the expedition in the Aegean Sea.

see also