A well-made portable aromatherapy inhaler typically lasts several weeks of regular use — Unplog's sticks are built for up to 60 days. The exact number depends on frequency of use and cap discipline.
What determines lifespan
Frequency of use (constant use empties it faster), cap discipline (leaving it uncapped is the single biggest factor in a shorter-than-expected life), and wick/oil quality, which varies by brand.
How to tell it's done
The scent noticeably weakens even right after opening it — a gradual fade, not a sudden empty moment.
Is it refillable?
No — Unplog's sealed stick is single-use, not refillable. (DIY blank-tube kits are a different, unsealed, refillable category — see How to Make Your Own Aromatherapy Nasal Inhaler.)
Planning around it
Daily use covers roughly two months per stick. A Subscribe & Save plan times a new one to arrive before the old one runs out.