Shielded pass-through PTT

Shielded and ventilated passthrough to allow the passage of small packages or containers for transport of radiopharmaceuticals between two adjacent rooms, in safe conditions for the operators. The ventilation system allows to keep a constant air quality in the room of D class even during trasfers. The passthrough consists in: frame to be fixed to the wall with two doors hinged on both sides of the tunnel, shielded with a lead plate and equipped with airtight gaskets intelocked system equipped with sensors and electric lock allowing the opening of a door only if the other one is closed and the internal tunnel has been flown with clean air for a pre-set time manual opening in case of power shortage ventilator to wash the internal tunnel with air taken from the room in D class.