4. Hygienic System
Sc�ematic diagram
T�e �ead bag �as been mounted in t�e skull and t�e face piece applied.
Insufflation �as just started.
Insufflation is concluded and expiration �as just started.
NOTE!
If a leak occurs around t�e mask or if insufflation proves difficult, it is normally due to incorrect
positioning w�en lifting t�e c�in or to insufficient tilting of t�e �ead.
To comply wit� t�e requirements of t�e �ygienic system and to ac�ieve a proper seal and accurate
measuring results, a �ead bag must always be used.
All trainees must use only their own face piece and head bag during training.
6
�nglis�