-- UK Founder Launches PASSAIR™ — A New Framework Extending Passivhaus Thinking Into Indoor Ecology
For more than three decades, Passivhaus and high-performance building standards have transformed architecture by solving energy loss, airtightness and thermal performance.
Now, a UK founder is proposing the next evolutionary step.
Richard Greenwood today announces the launch of PASSAIR™, a new framework focused on internal ecological performance in airtight buildings.
“Energy efficiency was the first revolution in building design,” says Greenwood. “Internal ecology is the next.”
PASSAIR™ does not challenge Passivhaus principles — it extends them.
While modern buildings have been optimised for energy retention and controlled ventilation, little attention has been given to how ultra-stable, highly controlled indoor environments influence particulate behaviour, microbial settlement patterns and long-term environmental balance.
“Air is the largest surface inside any building,” Greenwood explains. “It influences every other surface. Yet we treat it as empty space.”
PASSAIR™ reframes indoor air as part of a living internal system rather than simply something to move, filter or dilute.
From Energy Physics to Biological Physics
The framework introduces the concept of internal ecological dynamics — how particles move, where microflora settle, and how stability forms within airtight architectural systems.
Alongside PASSAIR™, two applied components form part of the broader indoor ecological architecture:
- AtmosField™ — a passive, architectural approach to particulate stabilisation within defined treatment zones.
- Probacterial® — a correction in language and approach to microbial balance on surfaces, shifting from sterilisation toward stabilisation.
Together, they represent a move beyond sterility and toward environmental balance.
“Passivhaus solved energy performance. The next question is biological performance,” Greenwood adds.
A Shift in How We Interact With Indoor Environments
As buildings become increasingly airtight and mechanically controlled, the importance of internal ecological stability grows.
Rather than positioning this as a new category of mechanical air purification, PASSAIR™ proposes a reframing:
From control to balance.
From sterilisation to stabilisation.
From fighting nature to working with it.
The launch signals what Greenwood describes as “the beginning of indoor ecology as a recognised design discipline.”
For media enquiries, interviews or further information: https://vench.co.uk
LinkedIn: https://www.linkedin.com/in/richard-greenwood-92946133/
Contact Info:
Name: Richard Greenwood
Email: Send Email
Organization: PASSAIR
Website: https://passair.co.uk
Release ID: 89183929
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