Make your spaces happier and brighter. Enjoy sunlight, clean air and freshness inside and outside with Cleair’s fresh air ventilation system for home & commercial. Our partners, Renson – a pioneer in fresh air ventilation systems, adhering to EU standards are the best in class. Give your Fresh Air Ventilation System For Home and office or commercial space the light it needs, the ventilation and air you need. Continuous ventilation is a must if you want to maximize the quality of life indoors and achieve a healthy living climate. After all, you spend 85 percent of your time indoors. Ventilation helps avoid unpleasant odors, allergies and other health problems.