This document from the CDC provides guidelines for protecting yourself from COVID-19, including practicing social distancing, frequent hand washing, self-quarantining if sick, cough etiquette, and disinfecting surfaces. The main points are to avoid close contact with others, wash hands often with soap and water or hand sanitizer for 20 seconds, and clean and disinfect frequently touched surfaces daily. Facemasks are only recommended if sick or caring for someone who is sick.