If the Director of Electrical and Mechanical Services opines that an electrical appliance is unsafe, he may require the supplier to recall the appliance, refund the consumer upon surrendering a purchase receipt of the appliance, and notify the public of the matter through TV, newspapers and other effective means. Consumers should make the appliance and its purchase receipt available and arrange a refund in a way as publicized by the supplier. Consumers are therefore advised to retain the receipts when purchasing electrical appliances.