Potrubie prívodu vzduchu

      _       _   _____    ____          _   _ 
   __| |     | | |___ /   / ___|   ___  | | | |
  / _` |  _  | |   |_ \  | |  _   / _ \ | |_| |
 | (_| | | |_| |  ___) | | |_| | |  __/ |  _  |
  \__,_|  \___/  |____/   \____|  \___| |_| |_|