How many watts does a Home Oxygen Concentrator use?

A Home Oxygen Concentrator draws 350 watts continuously once it's running, but its motor needs a brief surge of up to 550 watts to start. A generator has to cover that starting surge, not just the running load, or the motor won't start.

Generators that can run this

• Generac GP2200i
  1,700 W run · 2,200 W start · ~$550
• Champion 2000-Watt Inverter (100692)
  1,700 W run · 2,000 W start · ~$450
• Honda EU2200i
  1,800 W run · 2,200 W start · ~$1,150