Optimum for Biological Sample Collections

The cotton applicators from Puritan are amazing to be used for collection of various biological samples. You can use these applicators efficiently and can avoid any kind of contamination due to the swabs' high sterility from various bacteria or viral infections. I use these cotton swabs in my lab for multiple purposes while collecting the samples for DNA extraction from various locations like handles, bench, freezers etc. and found the results of extracted DNA contamination free. Very applicable, and provides high quality results.