Coronavirus has sparked a new conversation about the difference between ventilators, CPAP and BiPAP machines.

A BiPAP machine, along with CPAP machines, are typically used by patients who suffer from sleep apnea, McLaughlin explained.

CPAP machines typically start around $500, while biPAP machines can be had for about $1,200. Ventilators, however, range in price from $20,000-$50,000.

A CPAP machine helps people with trouble breathing and is commonly used to treat sleep apnea. CPAP machines can't directly replace ventilators, as they have key differences in how they work.