Follow the Center for Disease Control’s guidelines for both cleaning (removing germs, dirt, and impurities) and disinfecting (using chemicals to kill germs on surfaces). Use disposable gloves. Remove the car seat. Shake it upside down and vacuum to remove all crumbs. Check your manual for which parts can be removed or machine-washed. Don’t machine-wash the harness. If machine-washing is off limits, scrub cloth surfaces with detergent or warm soap and water. Don’t use bleach. Avoid soaking materials enough to risk mold or rust. Wipe all plastic and metal surfaces with disinfecting wipes. Clean the straps and buckle with warm water and gentle soap. Avoid vigorous scrubbing or harsh chemicals, as both can compromise strap strength. Air dry all pieces of the car seat completely before reinstalling it in your car.