Check the listing for details. Pura 4 Smart Fragrance Diffuser Alexa & Google Plug In Air Freshener NO SCENTS. Color: White, Condition: New, Made in China. Listed at 29.99 USD. The Pura 4 Smart Fragrance Diffuser is a modern, wall plug-in air freshener that operates on Amazon Alexa and Google devices. With a solid white design and a matte finish, this small, FDA-approved diffuser is perfect for the living room and offers aromatherapy benefits with its floral theme. The device has a noise level of 10 dB and can last up to 2 weeks before requiring refilling. Perfect for creating a positive and motivating atmosphere in your home during the winter season or any time of year.The Pura 4 Smart Fragrance Diffuser is a modern, wall plug-in air freshener that operates on Amazon Alexa and Google devices. With a solid white design and a matte finish, this small, FDA-approved diffuser is perfect for the living room and offers aromatherapy benefits with its floral theme. The device has a noise level of 10 dB and can last up to 2 weeks before requiring refilling. Perfect for creating a positive and motivating atmosphere in your home during the winter season or any time of year.