The classic T-piece circuit has a standard T-piece to connect to a mask or endotracheal tube, along with a PEEP valve to adjust pressure.

In addition to the features of the classic T-piece circuit, the ergonomic T-piece circuit includes a duckbill port for suctioning and delivering surfactant during resuscitation. The T-piece also has a blue protective cover that can be used to set and check pressures. The angled orientation of the PEEP valve has been designed to allow operators to use a more ergonomic hand position.

With spiral heater-wire throughout the circuit tubing, Fisher & Paykel Healthcare’s heated and humidified T-piece circuit is designed to deliver warm, humidified gas using the Fisher & Paykel Healthcare MR850 humidifier and the MR290 chamber. Resuscitation with heated and humidified gas is associated with a higher rate of normothermia (rectal temperature between 36.5°C and 37.5 °C) on admission to the neonatal intensive care unit (NICU).