The refill acts as a key to allow you to open the Karvol Vaporiser. Push the key end of a new Karvol Vaporiser Refill into the slots on the rear of the Karvol Vaporiser. Open the Karvol Vaporiser cover and slide the refill with the thin end downwards towards the rear. (There is a small diagram on each refill to tell you which way it should be inserted). Close the cover, ensuring that the catches click shut at both sides. Plug in the Karvol Vaporiser and switch it on; It will take half an hour for the Karvol Vaporiser to release its vapours to full effect.

For maximum effect, ensure that windows and doors are closed. For a milder effect, leave the door open.

Not suitable for use in an air conditioned environment.

After 3 nights use, the Karvol Vaporiser Refill should be replaced. To do this, use a new refill to unlock the unit. You will then be able to remove the used refill and replace it with the new one. Read enclosed leaflet before use.

Suitable for adults, children and infants aged from 3 months.