Invaluable Ventilators: The life-saving difference they can make

For many COVID-19 patients, a ventilator can mean the difference between life and death.

But how exactly do they work?

NIANIAGRA COUNTY IS UP.FOR MANY OF THESE PATIENTS, AVENTILATOR CAN MEAN THEDIFFERENCE BETWEEN LIFE ANDDEATH.HOW DO THEY WORK?WE SPOKE TO AN EXPERT ON THESEINVALUABLE DEVICES.