An interesting article on BBC regarding the cleanliness of aircraft cabins, well worth a read. There are a number of simple solutions to reduce the bacteria onboard aircraft, for example ‘Bacoban for Aerospace’, and antibacterial cleaner which remains effective for 10 days, this is not a claim, it is a proven fact unlike so many other products used in the market.

More information here:

http://www.bbc.com/future/story/20151004-how-to-clean-an-airliner