In an emergency situation time is vital, there is no opportunity to check patient history and expensive re-usable equipment can often become contaminated. To avoid cross infection from blood, vomit and secretions we offer a complete range of single Bag Valve Mask systems for use in resuscitation and emergency care. The standard operating and storage tempetature limits for these resuscitation systems are as follows: Storage temperature limits are: -40 degC to +60 degC Environmental operating temperature limits are: -18 degC to +50 degC.