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« I am a 25 year flight attendant, I work for American Airlines. This product is phenomenal! Working with the traveling public on a constant basis, as well as dealing with constant time zone and weather changes is really hard on the immune system. I had actually invented my own version of this (not even close to as effective), because I was tired of being tired. My mother called me when she saw this on shark tank, and I ordered it the next day. First Defense does not require me to put substances in my body, it just filters the air. "This product is inconspicuous enough to wear at work, unlike face masks". Thanks »
written by Pamela Mshow all