Puritan has been a trusted medical product manufacturer for 90 years. Forensic professionals rely on Puritan swabs for clean and accurate sampling. Available with foam, flocked or cotton tips, our collection of DNA-free and RNase-free sampling swabs have been tested by an independent lab to the most stringent standards. The result? Our forensic swabs are certified to be DNA-free at a threshold lower than any other swabs on the market today. Our collection of DNA-controlled swabs are manufactured in a DNA controlled and monitored clean room environment.