IISY Oy

IISY - a digital expert house specializing in indoor air and prevention of indoor air problems - helps property owners lead the development of indoor air quality in large property portfolios with their digital Freesi indoor air service. Freesi offers indoor air management tools and a turnkey service for indoor air analysis. IISY was founded in 2017 with the mission “Healthier Buildings. Healthier people. ”, After which the Freesi indoor air service has achieved a market-leading position in Finland as a digital expert service offering indoor air quality development. Good indoor air enables healthy, comfortable and productive conditions for property users.