There is never any reason to run your portable generator indoors. Even with the use of fans or exhaust systems, running your portable generator in your home, garage or shed will kill you!
Keep your operator's manual in a safe place where you can refer to it easily. Become familiar with the proper startup procedures for your generator. Always read and follow the safety tips and warnings before running your generator.
The use of battery operated carbon monoxide alarms can reduce the risk of an accident. Replace batteries and test regularly to ensure that the alarms are in good working condition. Know the symptoms of carbon monoxide poising.