An olfaction test device (1) causes air flowing into an inflow path (120) by use of a compressor (121) to have a constant flow velocity and a constant flow rate by passing the air through a sonic nozzle (124). The air is caused to pass through an opened one of inflow valves (126 to 129) disposed in branches of the inflow path (120) and to flow into any one of sample containers (101 to 104), whereby gases with different smell intensities are generated. The gases are then warmed by a heater (153) disposed in an outflow path (150) and released in a nose mask (155).
