1st day fresh for 100 days (50 days each, on low). Formulated with: no dyes; no phthalates; no formaldehyde. Low level indicator blue light flashes when it might be time refill. Febreze Warmer has a Blue Light that: Flashes twice when first plugged in to show it's working. Flashes continuously when it may be time for a new refill.
Instructions: