Enrich your home with the refreshing aroma of Air Wick air freshener electrical plug in refills. This Air Wick plug in device releases its scent continuously and can be adjusted according to your needs - keep a low setting for subtle fragrancing or small rooms; or turn up the intensity and fill even the largest of rooms with enticing and elegant aromas. Contains natural essential oils and lasts for up to 100 days on a minimum setting. Simply keep the refill upright and insert into the diffuser until you hear a click. Marvel as the atmosphere in your home is transformed into one of luxury. Air Wick Plug-In Device consumes less than 2p of electricity per day. Based on 24 hour/day usage. This pack contains 4 scents + 1 diffuser plug.