Thread: mouth breathing and cold
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Old 01-10-13 | 12:15 AM
  #19  
erig007
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Joined: Sep 2012
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From: 6367 km away from the center of the Earth
I sew the nose opening of a seirus neoprene mask. Now the cold air warm up more because it enter via the holes of the mask for the mouth. The distance the air must do to reach the nose has increased
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