In this final part of 'under five layers', karina is zipped into the fifth and final layer - a darlex sleepsack.

a rubber gasmask is pulled on over her head and connected by a long rubber hose to a bubbler bottle totally filled with water. We are now treated to over 20 minutes of listening to karina breathing through the bubbler bottler.

the ease with which she can do this can be varied by altering the depth to which the inlet pipe is inserted into the water in the bottle. The characteristics of karina's breathing alter in step with the depth of the inlet tube.

the filming is continuous - something that is rarely done for this extended time period. The clip runs for 30 minutes and is attractively priced. ;)