Wasn't sure the lavender would actually last, but the low setting really does stretch each refill weeks at a time. The scent is noticeable the second you walk in the room without being overpowering.
Christopher W.★★★★★
I've had these plugged in for about a month now and the lavender one still smells as strong as day one, which is way better than the last refills I tried that faded after a week. The 50-day claim on low seems believable so far, and I only have to swap them out every couple months instead of constant
Ava N.★★★★☆
I've been running the lavender one in my bedroom on low and it's still noticeable after about three weeks, which beats the refills I used before that faded in ten days. Wish the scent were a touch stronger on the high setting, but for the price I'll keep buying the five-pack.