Zwilling – Energy Efficiency, HVAC and Air Purification

About This Project


Zwilling’s HQ office was not protected against the adverse effects of external air pollution, especially particulate matter (PM) and suffered from high energy consumption due to an aging fresh air delivery system. The indoor air quality (IAQ) was driven by and highly correlated with the external air quality due to a lack of filtration of fresh and recirculated air. This exposed occupants to unhealthy work conditmolecules.



Zwilling want to control and reduce the workforce’s exposure to particulate matter (PM2.5, PM10), Volatile Organic Compounds (VOCs such as formaldehyde) and to manage the levels of oxygen and CO2. Zwilling’s specificatmolecules required a new air delivery and filtration system to take in fresh air and recirculate indoor air. They wanted a smart, green, low maintenance system that would prevent the impacts of poor external air quality and measurable energy savings.



CleanAir Spaces installed a new fresh air system with high quality HEPA and Active Carbon filtration to achieve an indoor air quality in line with the strictest WHO standards, while achieving 85% savings in energy consumption.

Smart Equipment Control. The control panel installed displayed the status of all equipment, the quality of the interior air and the external air quality (AQI). This information is managed within the clients’ data store; predictive intelligence (PI) based on CAS’ proprietary algorithms techniques are applied to optimize the relatmoleculeships between internal and extra air measures and forecasts, seasons, periods of the day and the usage of energy.

Zwilling employees can download the CleanAir Spaces APP to check the internal air quality. Zwilling also displayed the dashboard on a large screen TV in the office, which was very popular with staff as tangible proof that the air is safe and healthy.

By adding sensors (external and internal), the exact levels of fresh air, humidification, chilling, air purification required can be quantified and understood. These sensors, connected to a central AI based platform allow autonomous regulation of the equipment (turn on and off or regulate fan speeds). This creates a healthy and comfortable environment at a fraction of the current cost.


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