This invention is a process and apparatus (144) for the control of heliox (102, 104) ventilation.

The invention relates to control of the ventilation in vessel cargo holds carrying e.g. reefer containers.

Method for the control of a ventilation system using recirculation air or fresh air or a mixture of same, in particular for the control of the ventilation of vegetable and potato warehouses.

The method of heat flow control through the wall consists in creation of free area between a wall and related heat-insulated layer, regulated ventilation draught of the wall, with utilization of the air from building environment.

The method is characterized in that by control of the ventilation of the storage container (2) a significant methane gas build-up is prevented.

The control or regulation of the Ventilation is assumed by a fixed setting of a Ventilation target value (%MinVol), or a CO2-controller, as soon as the patient breathes in a manner which is not spontaneous enough.

Disclosed is an apparatus and method for the delivery of inspired gas, e.g., supplemental O2, to a person combined with gas sampling, including for the purpose of monitoring of the ventilation of the person.

Controlled ventilation improves air quality in the room and prevents overheating or condensation forming, particularly in airtight insulated building shells.