See Also: nonrebreathing mask(medicine)
nonrebreathing anaesthesia(medicine)
nonrebreathing valve(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
mask(encyclopedia)
mask(2)(dictionary)
mask(3)(dictionary)
mask(4)(dictionary)
gas mask(dictionary)
mask(medicine)

nonrebreathing mask (medicine)


nonrebreathing mask


A mask fitted with both an inhalation valve and an exhalation valve so that all exhaled gas is vented to the external atmosphere and inhaled gas comes only from a reservoir connected to the mask.