摘要 |
- 17 A filter apparatus includes a filter member 3 which includes at least one elongate shaped 5 body defining a length dimension with ends and sides and transverse dimension. The elongate shaped body includes a shaped middle member 30 sandwiched between a first planar member 31 and a second planar member 32 wherein the first and second planar members form the sides of the body, which has a construction that provides at least one opening or passageway 33 oriented through the shaped middle member and between the first 10 and second members 31, 32 to allow when in use, air flow there through, such that any non air materials or particulates including oil or water vapour, are able to be deposited on or in the filter member to be absorbed. The filter member is formed of a cellulosic material such as cardboard or paper. |