These medical swabs are 100% ozone safe.  They are low in volatile residue.  They will hold and absorb whatever you need.  We don't use any contaminating adhesives or coatings.  These swabs shred resistant and thermally bonded.  Made especially to accompany Doctor's Touch Medical Ice Freeze Spray.  
 
Freeze spray applicator
All purpose use
Clean sensitive areas
Medical and biotech use
Pharmaceutical grade foam