COLLETON COUNTY, S.C. (WCBD) - The Colleton County Sheriff's Office shared useful tips for those without power after Tropical Storm Helene to safely use portable generators and avoid carbon monoxide poisoning, the silent killer. Carbon monoxide poisoning can affect the body in many ways, officials state it can kill in as little as 5 minutes. Warning signs include headache, fainting, shortness of breath, nausea, confusion, and dizziness. The following five safety tips can help prevent carbon monoxide poisoning, according to Colleton County Deputies: 1. Never use indoors Officials urge users to never run a generator indoors or in a partially enclosed space like a garage. 2. Do not use a standard outlet The generator should not be connected directly to your home's wiring without first installing a transfer switch, according to Colleton County Sherriff's Office. 3. Use outdoor-rated cords Never use a worn-out cord or one that does not have a three-pronged plug 4. Make sure it is grounded Officials say to use a Ground Fault Circuit Interrupter (GFCI) to help prevent shocks and electrocutions. 5. Use a carbon monoxide alarm Install a battery or smart carbon monoxide alarm device inside your home 6. Position away from windows To prevent CO from entering your home place your generator at least 20 feet from the door, windows, and vents.