Thank you for your interest in RGF’s REME HALO® whole home in-duct active air purification system! Your new REME HALO® can be purchased and installed by your local certified Heating, Ventilation, and Air Conditioning contractor. Due to overwhelming demand, the REME HALO® may not be in stock at every location. We thank you for your patience as we use every resource available to help supply all of our valued customers with product. For more information, please contact your local HVAC contractor and/or visit our FAQs.