Hi Mick,

mine must be a different model, it has a small cover for the lamp and filters which is about 1/3 of the total width of the head, the remaing 2/3 is taken up with a mixing chamber and fan. The mixing chamber has a small handle and clips into place, one clip at the front 1/4 way up from the bottom and another on the back.

Mine's a table top model but as I don't have enough headroom to set it on the bench it's set on the floor, a "low profile floor model" LOL

Do you use metal or glass carriers?

Cheers, Richard