Keep your home smelling fresh with our bergamot, iris and sandalwood diffuser fragrance refill. Refine heritage opens with soft notes of pear and watery fruits. The fragrance descends to a floral heart that combines wisteria with green cyclamen facets and the transparency of the lily of the valley. Creamy sandalwood blends with powdery accords in the background. This diffuser scents your home for up to 45 days. Direction for use: To insert the fragrance refill into the diffuser unit, turn off the unit and unscrew the base. Unscrew the fragrance refill cap, hold the diffuser upright and push the refill bottle upright into the diffuser unit until you hear two CLICKS. Replace the bottom cover to the diffuser unit.