manual resuscitator bag is used to provide air by hand, if your patient is not breathing. The bag can also be used to give large breaths after suctioning, a trach change or when a ventilator circuit is being changed. The bag must always be near your patient in case of an emergency.
Distilled water is water that has been purified by boiling it into steam, then condensing that steam back into liquid form in a separate container. This process effectively removes impurities, minerals, and other contaminants, resulting in very pure water.