Title: thought i had bubonic plague
Review: i've travelled around the world several times. always in coach, always without getting colds or flu after the long flights. i wore the purifier on a long-haul flight and a few days later i developed a sickness worse than anything i'd ever had. cough, flu, bronchitis, wheezing, sinus agony. i've flown several more times since without and did not get sick. coincidence? maybe. but i won't use again.
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