Technical details of commercial units

Inspiration

  • ID 144mm, length 170mm
  • Scrubber duration 180min (QinetiQ test 20min @ 40m, rest of time @ 9m, temp 4C, 40litres/min, 1.6litres/min CO2)
  • Thermal protection: small air gap between scrubber tube and scrubber bucket
  • Inhale and exhale over the shoulder counterlungs.

Sentinel

  • Size ID 137-138mm (exact measure?), length 152-172mm
  • Temp stick 21mm
  • Scrubber duration 185min (40m air diluent, temp 4C, 40litres/min, 1.6litres/min CO2)
  • Thermal protection: warm exhale gas directly to down the scrubber. Scrubbed warmer gas goes up co-axially to inhale counterlung. Space between scrubber tube and bucket?
  • One back mounted inhale counterlung