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@Mary703, @Lisa723 ,
Hi Mary,
You must understand that there are people living right beneeth an approach path of an airport and these people cannot sleep without the background noise they are used to.
May I suggest that You consinder to buy this CD from Amazon: 150 spectaculare Sound effects.
https://www.amazon.com/Spectacular-Sound-Effects-Hundred-Fifty/dp/B000000L6P/ref=sr_1_3?ie=UTF8&qid=...
You can chose from 707 Jet take off, 707 Jet land, anti-aircraft fire, or, for guests living in refering neigbourhoods, car crash, heavy traffic, marshal fanfare, drag race and the like.
To distribute these sounds in Your building, You may also want to buy a little speaker system:
Mary, it really isn't difficult to please Your guests. If You had thought about this little detail before renting on airbnb, You could now have a 5* rating all across the board and be a stellar superhost.