摘要 |
<p>A fluid filter (10) includes a first batting (12) of high loft, non-woven, fibrous fluid-permeable material with a plurality of openings (14) formed through the thickness thereof across the length and width of the batting. A second layer (16) of high loft, non-woven, fluid-permeable fibrous batting is attached to the first layer (12) and extends across the entire length and width of the first layer (12). Preferably, the first and second layers are adhered together to form a single integral fluid filter (10). In the preferred form of the invention, the openings in the first batting have side walls (48) which are perpendicular to the upper surface (36) of the batting, such that fluid flow impacts on the upper surface of the batting, rather than directly impacting on the side walls.</p> |