| 摘要 |
According to some embodiments, a vent filter (10) for a waste tank system is provided having a housing (20) which eliminates or reduces the amount of bypass of odorous air moving through the vent system and precludes the odorous air from escaping without passing through filtering material (90). The housing includes a region (28) wherein the cross-sectional area is reduced, inhibiting bypass of odorous gas past the filtering material. |
