Blue light flashes when it might be time to 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. Good Housekeeping: Since 1909.
Ingredients
Fragrances.
Warnings
Caution: Eye irritant. See back panel. Caution: Eye irritant. Avoid contact with eyes and skin. Do not put fingers into product vent. Wash hands after handling. Keep out of reach of children and pets. First Aid Treatment: Contains fragrance oils. If swallowed, call a poison control center or physician immediately. Do not induce vomiting. If in eyes, rinse with plenty of water for 20 minutes. If eye irritation persists, consult a physician.