A ventilator system (110) includes: an inhalation filter (120) configured to receive and filter a gas a humidifier (130) connected to the inhalation filter and configured to adjust a humidity of the filtered gas a dual-limb patient circuit connected to a patient and configured to supply ventilation to the patient, the dual limb patient circuit including an inspiratory limb connected to the humidifier and configured to supply the filtered gas to the patient and an expiratory limb configured to receive an exhaled gas from the patient a condenser (140) connected to the expiratory limb, the condenser being configured to cool and remove moisture from the gas from the patient and an expiratory filter (150) connected to the condenser and configured to filter the cooled gas from the condenser.
