Friday, 11/09/2026 | 02:38 GMT+7
If we could clean the air, we could recycle air that already has the perfect temperature,” explains Matthew Johnson, a professor at the University of Copenhagen, who invented “CleanAir”, the device that acts like an all-in-one dehumidifier, cooler, heater, and cleaner.

The inventor says his device can cut the energy use by 25%. Moreover, it can prove itself healthy for those who suffer from asthma, allergies, of whatever age or sex. CleanAir supposedly removes particles, viruses, ozone, bacteria, organic solvents, hydrocarbons and cigarette smoke from the air.
The patented device has been tested at the University of Copenhagen where it cleaned 40 different compounds from the building in only a few minutes of functioning.
Johnson relied on naturally-occurring processes for air cleaning and adapted them for use in buildings. A scaled version is in the works, aiming to improve a technology that can remove volatile organic compounds (VOCs) from industrial smokestacks, making factories a lot cleaner.
greenoptimistic.com
Contract Award Notice - Providing technical support, training, and communication on energy efficiency for industrial zones and clusters in Vietnam (Package C2.2.13)
19/08/2026
Conference on Energy Efficiency and Conservation in 2026
Consultation on the Draft of the Vietnam Energy Efficiency Fund Establishment
Policies, Technology and Finance Driving Energy Efficiency in the Industrial Sector
Contract Award Notice - Review and update for current Energy Efficiency Benchmarking for 2 Sub-Industrial sectors
Contract Award Notice - Notice for Contracts award for Finalize VNEEF (Vietnam National Energy Efficiency Fund) model (Package C2.2.14)
Polytex Pioneers Energy Efficiency in the Textile and Dyeing Industry
Dong Lam Cement Promotes Energy Efficiency to Enhance Sustainable Production