Frequently Asked Questions Where can I buy Philips Sonicare AirFloss and accessories? Philips Sonicare AirFloss and accessories can be purchased online or in-store. Online store Our products are available for purchase online, such as Philips online store, Amazon, Walmart and many more. To check the full list, click here. Retail store Philips products are also available for purchase in-store. To find a store nearby, click here.