Under normal conditions the Bandit will provide the user with approximately six months protection. The Bandit incorporates D.A.C.C. which is specially coated so that it can be washed. It should be washed on a regular basis to maintain optimum performance. Immerse in a pan of boiling water (this releases the petroleum compounds pounds which are attracted to the D.A.C.C.) and leave to cool. Then wash in warm water using a non-automatic washing powder, rinse and leave to dry.