The Pentagon has ordered an additional 8,000 ventilators, with delivery of the first 1,400 by early May.
The $84.4 million order was placed with several suppliers under existing Defense Logistics Agency contracts.
A Pentagon spokesman, Air Force Lt. Col. Michael Andrews, identified the four suppliers as Zoll, Combat Medical, Hamilton Medical, and VyAire. Andrews said delivery locations will be prioritized by FEMA and the Department of Health and Human Services.
These are in addition to the 2,000 ventilators that the Pentagon previously said it would make available to FEMA from Defense Department stockpiles.