Laws differ in each country, @Muataz0, but usually a landlord can have access to his property while you rent if you are given proper notice. Many Air BNB hosts will ask to enter a long term listing if there is a repair needed or if there are cleaning options as part of the space. However, if you are uncomfortable with the host/landlord entering your apartment in your absence, you should let them know. Air BNB does not support future guests seeing a listing before booking a reservation as a safety issue for the host and encourages hosts to use the site rather than have a preview. Hope this helps