Hello s.hirzel. Thank you for your message. The floss is not available as a spare part, but you can easily replace it yourself. To do this, you can take a conventional cotton pad, cut it to size and then place it in the fragrance cassette. You can then drip your favourite fragrance onto it again. If you have any further questions, you can also contact us directly either by email at service@stadlerform.com or by phone on 041 720 48 48. Best regards, your Stadler Form team