Refresh your World Market reed diffuser with a set of new reeds and cut down on waste. If your diffusers aroma is fading, it may be time for a new set of reeds – they usually last for around six months. You can also switch them out when you want to change to a new scent, to prevent the fragrances from mingling. If it’s our Apothecary diffuser you love, simply wash the bottle in soapy water, choose from our extensive range of Apothecary refill oils and add your new reeds.