BRAND
GSD
MODEL
M400
TYPOLOGY
professional full-face mask
FIRST STAGE
surface feeding, or scuba with first stage Gsd
SECOND STAGE Ø mm
Gsd Spinnaker Pro
HOSE
left
SPECIAL FEATURES
the glass can be opened with a friction and locking mechanism on opening - the internal mask allows for oro-nasal breathing - neoprene hood with pockets for earphones
NOTE
the M400 has shown in tests that it can allow a respiratory rate of 60 breaths per minute and a flow of 400 l / min at -50 m using air, or at -300 using a HeO2 mixture
COUNTRY OF ORIGIN
Italy
YEAR OF PRESENTATION
1966
SOURCE
Maurizio Baldinucci collection