The system emits air, provided by the air-conditioning unit, directly from the bottom of the chair, generating a micro-climate effect around it.
It works by emitting primary air from the base of the cylindrical unit, inside which there is a (static) swirl effect diffuser that makes the air change direction thus channelling it through the perforated cylinder wall; this air movement creates a depression in the centre of the diffuser where there is an inverted cone that draws air from the environment and mixes it with the primary air.
This then generates a pre-mixed flow of air that is distributed across the entire perforated surface before being emitted into the environment at a temperature around 1-2°C lower than the ambient temperature.
The under-chair diffusers operate with a temperature differential between the primary and ambient air of between 5 and 7 K.
The nominal air flow of each diffuser is between 30 and 70m³/h with a noise level of 15 dB(A) at a flow rate of 40m³/h.