| 摘要 |
The perfumes supplied to the audience in a stream of carrier gas are heated to a temperature specific to the perfume, before the carrier gas is discharged into the air surrounding the audience. The carrier gas is heated in the paper system to the temperature specific to the perfume, before it comes into contact with the perfume. The carrier gas contains or consists entirely of helium. Before contact, the carrier gas is cooled to avoid ageing. The carrier gas with perfume is intermittently supplied to the audience together with cleansing gas.
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