Target groups are invited to test on cigarate flavors. The respondents did test in batches, with 10 people in each batch. Each respondent smokes 6 cigarettes on site. The smoking concentration of each batch of interviewees is relatively high, and the ventilation requirements for the venue are strict. It is recommended to use industrial exhaust fans for ventilation and odor dissipation, and the smoke detectors will be sealed to prevent fire alarm sounds.

Target audience: 20-50 years old, 50% male and female. Respondents are required to smoke coarse or fine cigarettes, and there are designated cigarette brands. All required brands belong to high-end brands.