I would literally hold my breath for as long as I could and hope like heck that by the time I gasped for air that the contaminants had settled to the floor.
Despite my efforts, I almost invariably ended up with a cold everytime I travelled, especially during winter and despite my immune-system building efforts prior to travelling.
Now here’s a point, as an ex-air traffic controller, I know a lot of pilots – and they get more colds and flu than anyone – despite the fact that the air is better up at the front of the cabin than it is in the back.
Anyway, I finally decided to try a personal air purifier – and you know what – it seems to work! I haven’t had a cold since I got mine a couple of years ago – not since suffering 7 grueling hours on a trip from Lima to Newark with a cold that I picked up on the way down.
We found that Sharper Image offers the Ultra-Mini Air Supply(tm) for a very reasonable price.
If you’re freaky about other people’s germs – I highly recommend that you get the Ultra-Mini Air Supply(tm) personal air purifier, and start protecting yourself against those nasty colds!