Abstract: The invention relates to a method for enriching air with at least one aromatic substance, which is in particular dissolved in a carrier medium. Here, the aromatic substance is actively released in a predefined quantity into the air, which is for example situated in an interior compartment or which is intended to be fed in flowing form to said interior compartment. According to the invention, it is proposed that the dispensing of the at least one aromatic substance into the air is performed in a dynamically closed-loop-controlled manner. Accordingly, the at least one aromatic substance is released in reaction to a detectable state of a person exposed to the air and/or in accordance with a simulation.

Abstract: An apparatus for increasing the atmospheric humidity of an outdoor weathering facility for test samples in a test area (1), with a graduating unit (2) for controlling the level of the atmospheric humidity in the test area (1) by discharging an evaporated amount of fluid and with a device (4) for measuring the level of the atmospheric humidity over time during a test period.

Abstract: An apparatus for increasing the atmospheric humidity of an outdoor weathering facility for test samples in a test area (1), with a graduating unit (2) for controlling the level of the atmospheric humidity in the test area (1) by discharging an evaporated amount of fluid and with a device (4) for measuring the level of the atmospheric humidity over time during a test period.