The term plein air is a French phrase which means in open air. This kind of painting that is created outdoors. It is an open air painting spread by English painters during 18th and 19th century. This type of painting is associated with usage of painting equipment which are portable and could be carried to desired places. These mobility properties made such open air paintings popular during those days.  This kind of paintings gave priority to nature and natural light and is regarded as a branch of impressionism that has the presence of air and light.