A tracheal humidification system (20) includes a filter (26) for humidifying the air being breathed by the patient. The filter (26) is disposed in an uppermost portion (24) of a breathing path (22). At least one secretion path (28) including a drain tube (30) is provided for collecting secretions (512) from the patient. Filter (26) is disposed above the secretion path (28), so that the secretions (512) are prevented from contacting and clogging filter (26).