SMARTAIR DIFFUSION® is based in Australia and distributes the following HVAC air diffusion brands and associated components:

  • HARMONY™ – world-wide
  • SMARTEMP® – world-wide
  • LTG® – Australia & New Zealand
  • PRICE INDUSTRIES® – Australia, New Zealand, Malaysia, Philippines, Hong Kong, Macau & PR China.  


HARMONY products provide a cost effective solution for standard HVAC applications that require dependable operation and a quality finish. Standard designs that are mass produced achieve economies of scale to realise capital savings for the end client.    

SMARTEMP products provide high quality, premium air diffusion solutions that are well suited to demanding applications or where superior performance is required. This typically includes elevated comfort, enhanced indoor air quality, high energy efficiency, low pressure characteristics, quiet operation, or suitability to low temperature VAV applications or thermal displacement systems. Key SMARTEMP products have been developed for the higher heat loads and elevated humidity levels typically found in the tropics. SMARTEMP also provides engineering and technical services such as selection programs, technical brochures and direct client advice in relation to specialised air diffusion performance, indoor air quality, diffuser layout, and associated acoustics and system design. These services include solution testing and airflow visualisation in SMARTEMP's Sydney laboratory. Contact for further information.

LTG Aktiengesellschaft in Germany designs and produces highly energy efficient and sustainable, high quality HVAC products for optimum performance, indoor air quality and comfort. LTG has a multitude of patented HVAC systems and solutions, and additionally offers bespoke system and project solution testing via its R&D facility and laboratory located in Stuttgart. Innovations from LTG include micro-jet linear diffuser technlology with SystemClean™ to minimise ceiling soiling and reduce the risk of condensation. SystemClean™ enhances hygiene and reduces maintenance costs, whilst ensuring an on-going pristine aesthetic.  

PRICE INDUSTRIES is the largest supplier and manufacturer of commercial air diffusion products in North America, offering both standard grilles and specialist solutions for sustainable applications and occupant wellbeing. Solutions and systems for critical environements such as healthcare and laboratories, as well as security grilles for light to maximum security applications, are also available.

RESEARCH AND DEVELOPMENT (R&D) LABORATORIES at SMARTEMP, LTG and PRICE INDUSTRIES provide the highest level of specialist HVAC expertise and testing across the globe -  in Australasia, North America and Europe. SMARTEMP's product development laboratory in Australia together with the world-class R&D facilities and laboratories from LTG in Germany and PRICE INDUSTRIES in Canada form the foundation for tailoring solutions and services to cater for the HVAC challenges of tomorrow.

Swirl diffusers form a key part of the SMARTAIR DIFFUSION range. The product range of high induction air diffusion swirl technology includes ceiling swirl diffusers for low temperature VAV applications, as well as a variety of specialised ceiling and side-blow swirl diffusers for large volume spaces.  The latter includes high capacity variable pattern swirl diffusers for convention centres, sports arenas, bulky retail spaces, and similar.  Many solutions offer manual, electric or self-powered thermal actuator discharge direction adjustment.

SMARTAIR DIFFUSION's extensive range of floor swirl diffusers offers horizontal displacement flow, as well as vertical discharge and inclined discharge patterns, and includes the world's only floor swirl diffuser with user-adjustable airflow rate, direction and pattern.  This patent pending, low profile, floor swirl diffuser, with optional motorised VAV operation, maximises thermal comfort personalisation by the user via independent hand adjustment of both local airflow rate and local air motion.  It also avoids "warm head / cold feet" discomfort at low airflow rates by maintaining throw to head height of seated occupants regardless of the diffuser airflow rate setting (manual or VAV). 

SMARTAIR DIFFUSION offers a range of perforated displacement diffusers, both for commercial and auditorium applications. These, like their floor swirl diffuser counterparts, realise high comfort levels and enhanced indoor air quality to achieve elevated levels of occupant wellness. Perforated displacement diffusers include rectangular displacement, drum displacement, wall displacement, step displacement and floor displacement diffusers.

Clean room, healthcare and critical environment products by PRICE INDUSTRIES include venturi valves, operating theatre outlets, laminar flow diffusers, HEPA filter diffusers, and associated controls.  

In 2005 SMARTAIR DIFFUSION developed and supplied specialised radiant chilled ceilings and passive chilled beams for the world's first 6-Greenstar rated building, Council House 2, in Melbourne. The following year SMARTAIR DIFFUSION spearheaded the introduction of chilled beam technology to the tropics by assisting with the design and by supplying this technology to Monash University in Kuala Lumpur, which was the first passive chilled beam project in Malaysia.

SMARTAIR DIFFUSION is proud to continue raising the bar for chilled beam and chilled ceiling systems in the Asia-Pacific region by offering the latest solutions in the field. SMARTEMP and PRICE INDUSTRIES offer industry leading passive chilled beams, active chilled beams, radiant chilled ceiling and radiant chilled sail technologies, including patent pending designs and optional VAV operation.

As a proud member of the Green Building Council of Australia, SMARTAIR DIFFUSION® offers smarter diffusion solutions for wellness, sustainability, energy efficiency, indoor air quality and comfort. 


Tomorrow's buildings will only outperform those of today by offering: