So they are both for the virus patients?
Ventilator for the patient respirator for the caregiver/first responder.
They are both used for the patients, and the respirator is mostly used by non-patients (I'm assuming the patient is in isolation (look it up). The ventilators are for the patients.
My local meteorologist discussed Elon Musks satellite train here.
https://www.facebook.com/54875673475/posts/10157967732128476/?d=n