You should know that portable power units are safe for domestic use; meaning you don’t have to be outdoors if you want to safely turn them on. These devices don’t emit gases or any toxins, so you can freely make use of them in your home as well. And while you may not have the need for these devices in your home all the time, you may require backup power in the case of a power outage or malfunction. In that case, backup battery-based portable generators are always a good idea, even when you’re not planning to go camping.