stored in its pocket cannot be used in the event
of a burial in an avalanche, tree-well or deep snow
(illustrations 3 & 4).
7.
When buried by snow, exhalation through the
nose will increase the concentration of carbon
dioxide in front of the user's face and potentially
around the AvaLung II's intake valve. This can
recycle carbon dioxide to the user, decreasing the
effectiveness of the device. Technically, users of
nose clips may significantly reduce the possibility
of carbon dioxide contaminated air in the facial
area due to nasal exhalation; however, the violent
nature of many avalanches may make it impractical to get the nose
clips in place, and potentially difficult to keep them on even if they
are on prior to being caught by the avalanche.
8.
To ensure that the device will function effectively without the added
benefit of nose clips, Black Diamond has conducted controlled
tests of the AvaLung II without nose clips, and had over twenty test
burials which lasted 60 minutes or longer. Without the AvaLung, test
subjects typically encounter serious medical problems within 5 to
10 minutes. If you become buried without the nose clips on, remain
calm and focus on exhaling only through the AvaLung. Nose clips
have been provided to eliminate the potential for nasal breathing and
to satisfy the Personal Protective Equipment Directive (89/686/EEC),
Annex II, Section 3.10.1. Please read and understand all information
regarding the capabilities and limitations of the device before use.
9.
Once in your mouth, the mouthpiece
place for the AvaLung II to function properly. When tumbling in
an avalanche, plunging into a tree-well, or skiing or riding in deep
powder, the mouthpiece must be kept firmly in your mouth (holding
it firmly in your mouth with your teeth will improve your chances of
keeping the mouthpiece securely positioned in your mouth). Your
mouth must remain closed to prevent loss or displacement of the
mouthpiece and to avoid snow entering into your mouth. Snow
in your mouth could result in a blocked airway and eliminate the
effectiveness of the AvaLung II or your ability to insert it in your
mouth.
Must be securely held in
Illustration 4
stored/rentrèe