IsoFan Oy Integrates Big Ass Fans and Clean Air Enterprise AG
Integrated Air Infrastructure Platform for Industry, Schools, Hospitals and Residential Buildings
A Finnish specialist in air recirculation and indoor air quality combines the expertise of Big Ass Fans in large-scale, energy-efficient air movement with the advanced electrostatic filtration technology of Clean Air Enterprise AG (CAE). The integrated solution addresses industrial applications as well as sensitive environments such as schools, hospitals and modern residential buildings across the Nordic market, creating a comprehensive Indoor Air Quality platform.
Ownership Structure of Big Ass Fans
Big Ass Fans is part of Marmon Holdings, Inc., a diversified industrial group headquartered in the United States. Marmon Holdings is owned by Berkshire Hathaway, one of the world’s largest and most capitalized industrial and investment conglomerates. This ownership structure represents long-term capital strength, operational excellence and sustainable growth orientation.
Unique Selling Propositions (USP)
- WHO-aligned reduction of PM2.5 and ultrafine particles
- Reduction of black carbon with measurable climate impact
- Removal of viruses, bacteria, yeasts and fungal spores
- Electrostatic filtration technology with very low pressure drop
- Cooling curve optimization (2–3°C potential depending on application)
- Measurable energy savings through combined air movement and filtration
- Retrofit-ready integration into existing building infrastructure
- Modular and scalable system architecture
- Monitoring integration with traceable measurement processes
- 8 years of operational references in Switzerland
- Globally patented technology platform
- Reference projects including the Urban Lab at Expo City Dubai
- Certified as Solar Impulse Top 1000 Solution
- Eligible within energy-related funding programs
- ESG-relevant impact including health and productivity benefits
By combining air movement (Big Ass Fans) and air purification (CAE), a new category is created: Integrated Indoor Air Infrastructure. For operators, this translates into higher energy efficiency, improved health protection and long-term asset value stabilization across industrial, educational, healthcare and residential real estate.