Pura Diffuser Aroma Notes: Our diffuser fragrance combines the refreshing aroma notes of white tea, bergamot, and jasmine; this blend creates a luxurious, spa-inspired aroma, Automatic Smart Vial Detection: Simply insert your smart aroma fragrance vial and the Pura 4 Home Diffuser will automatically detect the fragrance refill, creating a seamless swapping experience, Long-Lasting Scent for Home Diffuser: Pura diffuser refills with Puralast Smart Scent Technology provide a long-lasting luxury fragrance experience of up to 120 hours per vial for your home, Health-Conscious Home Essential: Our fragrance refills for the home are designed without harsh chemicals; we avoid ingredients known to cause potential harm to your health or the environment, About Pura: We're reimagining the future of fragrance through smart home technology, because life is better when it smells good