Is it possible to extract water from air?

A very simple answer is that ...

A very simple answer is that in cities with high humidity, usually the basements of the house have the problem of high humidity 
They use dehumidifiers to bring the humidity down. This is a very simple way to get the humidity of air

Published March 29, 2019 17:10 by Mohammad Mahmoudi, MSC. Researcher

Of course. All air has some ...

Of course. All air has some humidity which is the gas phase of water. In fact there are companies that produce units that do this. Cost is several hundreds of dollars for small units.

Published January 17, 2016 21:56 by William Turner, Trustee, Chief Hydrogeologist, CEO, QB, and licensed escrow officer at WaterBank

Atmospheric water generator ...

Atmospheric water generator

Yes. An atmospheric water generator (AWG), is a device that extracts water from humid ambient air.
Water has been collected from the air for at least 2,000 years using air wells in Middle Eastern deserts, and later in Europe. Historical records indicate the use of water-collecting fog fences.
AWGs are very useful in locations where pure drinking water is difficult or impossible to obtain, as there is almost always a small amount of water in the air.  http://goo.gl/w9wD

Published September 4, 2010 07:27 by Water Network Research, Official research team of The Water Network