What makes the difference in wiper products is the amount of surface contamination they leave behind after use.
In many instances, it is no longer adequate to show that a pharmaceutical or medical device is sterile, but one also must demonstrate that it is “pyrogen free.”
Searching for nothing would seem to be an absolute waste of time — unless you are responsible for cleaning validation. In that case, success is deliciously ironic since you can say, “I found nothing and that’s good news”.
If you had to describe the overriding characteristic of sterile environments in one word, that word might be “uncompromising”. This word conveys the sense that sterility requirements in these en vironments are indeed inflexible.
Sterilized, Validated, Documented and Pyrogen Tested
Follow relevant site protocol (procedures for safety, contamination, etc.) and wear cleanroom gloves...