Gas sampling system

A gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitor, the gas sampling system comprising:

• an input connector configured to couple the gas sampling system to the patient respiratory gas output mechanism;
• a gas sampling tube coupled to the input connector, the gas sampling tube being configured to conduct the respiratory gases;
• an output dryer tubing connected to the gas sampling tube, the output dryer tubing receiving unheated and/or non-vaporized respiratory gases from the gas sampling tube, the output dryer tubing being characterized by a tube length and a relative moisture removal efficiency, the relative moisture removal efficiency being dependent on the tube length, the tube length being selected to limit the moisture content of the respiratory gasses being directed into the respiratory gas monitor to a substantially predetermined level;
• an output connector coupled to the output dryer tubing, the output connector being configured to couple to the respiratory gas monitor;
• and
• wherein the gas sampling system does not include electrically powered components.