Mrs. TestKing and I will be spending 3 weeks in Europe once again this summer (7th annual trip) and have learned that, regardless of hotel, we need extra air circulation so we usually buy an inexpensive desk fan upon arrival. This year, we plan to carry-on a small 12-inch 220v fan (fan disassembles and easily fits into carry-on bag). We're travelling AA in J ORD-LHR (then onward within Europe on Iberia and Aer Lingus). Should we expect any problems with airport security screeners at ORD, LHR, BCN or DUB? THANKS FOR ANY ADVICE