Calpol Vapour Plug Refill Pads contain a blend of aromatic oils including lavender, chamomile, menthol, camphor and eucalyptus. These oils help to soothe and comfort your child at night whilst helping to ease breathing. Each refill pad lasts for up to 8 hours.– Contains 10 refill pads – Up to 8 hours release per pad – Easy breathing – Suitable for 3 months