AIR 351 is an independent nonprofit organization based in Cascais, in the Lisbon region. Its mission is the development of an international program of artistic residencies in the field of Visual Arts. The program favors the integration of residents in the local cultural community, promotes networking and seeks to develop opportunities for each resident.

AiR 351 team provides curatorial and production support, organizes studio visits and field tours and develops public activities. The professional development program is directed for artists and curators who can apply by an open call process. Residencies can last up to 12 months. AiR 351 operational team gathers art professionals specialized in curating, production and management.