The AeroChamber* VENT Chamber is developed to be left in the inspiratory limb of a ventilator circuit, and can be collapsed when not in use without the disruption of the continuous mechanical ventilation. The ergonomically designed chamber is easy handle (easy to open and close) and is made to provide maximum patient comfort. Furthermore, the ideal size of the AeroChamber* VENT Chamber allows the enlargement of the aerosol plume and gives optimum delivery of Metered Dose Inhaler (MDI) medication to the patient. Moreover, the tool is equipped with an offset wye adapter which allows the AeroChamber* VENT Chamber to be used with all types of wye's, including the Fisher Paykel parallel wye. The AeroChamber* VENT Chamber can be used with all commonly prescribed MDI canisters, including MDI products that are equipped with an integrated dose-counter.