Inclusion Criteria:  Adult males or females, 21-60 years old, inclusive, verified with government-issued photo ID. Must be a current smoker of factory-made filtered menthol and/or non-menthol cigarettes, has smoked at least 100 cigarettes in their lifetime, and typically smoke on at least 20 days out of the past 30 days. Smokes, on average, ≥ 5 combustible cigarettes per day (CPD) on days when cigarettes are smoked. Must indicate "an intention to use" the HTP IP after a brief review of product information at the Screening and Enrollment Visit (SEV). Subjects will not try the product at the SEV. Available and interested in participating in an 8-week study about the HTP IP. Able and willing to comply with all study requirements, including questionnaires, the eDiary reporting procedures, and provide valid contact information. Able to read, understand, and willing to sign Informed Consent Forms (ICFs) and complete questionnaires written in English. Has not participated in any tobacco-, vapor-, or nicotine-related research within 3 months of screening.  Exclusion Criteria:  Self-reports as currently quitting or intending to quit within the next 3 months all tobacco or nicotine product use ("currently" is defined as within (≤) 30 days prior to signing ICF#1). Those who intend to quit CC only can be enrolled. Female subjects who are currently pregnant or breastfeeding or planning to become pregnant or start breastfeeding within the next 6 months based on self-report. Female subjects who self-report they are not using adequate methods to prevent pregnancy. Self-reports "poor" physical health (based on the five-category Population Assessment of Tobacco and Health (PATH) questionnaire): "In general, how would you rate your physical health?" (Response choices: Excellent, Very Good, Good, Fair, Poor). Self-reports "poor" mental health (based on the five-category PATH questionnaire): "In general, how would you rate your mental health?" (Response choices: Excellent, Very Good, Good, Fair, Poor). Employees of tobacco or vapor companies.