Refurbished – Medtronic Covidien Puritan Bennett 840 Respiratory VentilatorPromote Natural Breathing with Innovative Features The Puritan Bennett 840p provides a solid foundation to build your ideal ventilation solution. With the addition of optional advanced technology upgrades, this ventilator can meet the needs of many patient types. The system features PAV+ software, a breath type that better manages a patients work of breathing and supports more natural breathing compared to conventional mechanical ventilation. With the