The Protector is a pressure equalization device, permanently attached to the vial and used in the preparation of drugs from either powder or liquid form
A Protector provides closed pressure equalization through the sealed expansion chamber and dry connections via the double membrane technique
It effectively ensures there is neither overpressure nor vacuum when air or fluid is injected into or aspirated from the vial
Fits to drug vials with necksize of 20 mm
When attached to a vial Protector 50 has an equalizing capacity of 50 mL of air
