Fig. 1From: Influence of heat and moisture exchanger use on measurements performed with manovacuometer and respirometer in healthy adultsPhotographs of the dispositives: a Manovacuometer used in a conventional way. b Manovacuometer and HME employed. c Respirometer used in a conventional way. d Respirometer and HME employed. Legend: (1) Manovacuometer; (2) Trachea; (3) Disposable mouthpiece; (4) HME and (5) RespirometerBack to article page