Many air care items are non-powered (sprays, gels, solids, sachets, moisture-absorbing bags). Some are electric plug-in devices that require an outlet and use replaceable refills.
Common scents include lavender, fresh/fresh scent, bamboo, peony, and blended notes such as lavender & bergamot.
Products control scent using adjustable fragrance settings, timed or time-release technologies, and digital controls (including low-level indicator lights). These features let you reduce or schedule fragrance output to manage intensity and duration.
Durations vary widely by product. Examples from listings include roughly 2 weeks up to 150 days, with specific claims such as 15–30 or 30–60 days (depending on airflow), 30 days, 45 days, 50 days (on low), and formats described as 100 uses.