Can I use a humidifier bottle with DeVilbiss iGo?

Yes and no. You can only use a humidifier bottle with the DeVilbiss iGo while in the continuous flow mode. A humidifier bottle cannot be used while the iGo is set to pulse mode mode. The DeVilbisss iGo is one of a few portable oxygen concentrators capable of delivering oxygen in both modes so make sure that you have it set to continuous mode when using the humidifier kit.