Black Diamond Outlaw Avalung Pack - 1831-1939cu in

March 25, 2009

Hello, I just bought a Outlaw Avalung pack, and wondering about the breathing in the avalungsystem. When I breath normally, the pack sounds both on inhale and exhale and that is a very high sound. Should it do that? If i breath very hard it doesnt sound, but i get dizzy of breathing so much.

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