Nest Wall Diffuser Refill - Moroccan AmberEnhance A Room with Our Nest Wall Diffuser Refills! Simply insert one refill into your NEST New York Wall Diffuser (sold separately), to enjoy approximately 30 days of uninterrupted fragrance. The Nest Wall Diffuser Refill Assorted Fragrances will be loved for their easy installment and how you can change up your room fragrance with different refills. Good for households with young kids, and pets The device plugs into the wall outlet Simple and