The results include plug‑in scented oil refills and automatic aerosol room spray refills.
Plug‑in oil refills commonly state up to 60 days per refill on a low setting; pack durations are shown as up to 120 days for a 2‑pack and up to 300 days for larger 5‑pack options.
Automatic spray refills offer timed bursts every 9, 18, or 36 minutes.
Plug‑in scented oil refills are electric and do not use batteries. Automatic spray refills are battery‑operated and reference using alkaline batteries in the dispenser.
The selection includes scented oil plug‑in refills (oil form) and automatic spray refills (aerosol form), and many listings note the refills are disposable.
The plug‑in refills are described as fitting both horizontal and vertical outlets and are inserted upright into an outlet.