A ventilation system and method with a ventilating tube, a stylet removably disposed within the ventilating tube, and a proximal housing. A proximal housing includes a proximal end that connects to the ventilating tube, a distal end that connects to a ventilating machine, a lumen between the proximal end and distal end, an external wall between the proximal end and distal end, a filter contained within the external wall, surrounding the lumen, and connecting the proximal end and distal end, and a cavity between the filter and the external wall. A proximal housing contains at least one detection element and can be sensitive to carbon dioxide. The same proximal housing contains at least one treatment element to heat, cool, humidify, dehumidify, or provide medication to the lumen of the proximal housing.