Eliminates lingering odors. 1200 hours (on low). Scratch and sniff. Formulated with: No dyes; No phthalates; No formaldehyde. 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. Limited warranty to consumers. Replacement or refund if defective. www.febreze.com. www.pg.com. Questions? 1-800-699-4657; www.febreze.com. Terracycle: Recycle at Terracycle.com. Refill assembled in Mexico.