Build your Arch's refill plan.
Your Arch refill plan ships Cold-Air Concentrate — concentrated fragrance oil for the Arch. Choose up to four scents, each in the size you want (up to 1 L), delivered on your schedule at 15% off. Charged on your schedule; each box ships a few days after payment. Change scents, sizes or cadence anytime.
The Arch takes Cold-Air Concentrate only — never reed diffuser refills or anything mixed with a base.