Ltpgtthis model is a safety extra model where splashes do not effect it this fan is ideal for use in shower rooms bathrooms with showers and other zone 1 and zone 2 wet areas whilst they are designed specifically for domestic applications they are also suitable for commercial applications where walls are regularly hosed downltpgt ltpgtthe selv system consists of a 12v fan unit which can be safely installed in the spray area of a bath or shower with the transformer located outs