The selected concentration is the concentration determined by the Ministry of the Environment for panel selection, and is used for olfactory tests, olfactory training, national examinations of odor judges, etc.
There are 9 levels of concentration setting, and it can be used in a wide range from smell test to training and sensitivity measurement.
Specifications
Low-concentration set: Low-concentration standard odor x 5 pieces (Concentration/PL1 > PL2 > PL3 > PL4)