This product works to me
"As a FREQUENT traveler, and someone who is immuno compromised, this product was recommended to me from a doctor friend. Using it for the last three months has been a godsend. I use it anytime. I’m in a crowd whether it be in a restaurant airport or on a plane. It’s good for eight hours. Sometimes I have to use it once a day sometimes twice love the product and will be a continued user."
