| 摘要 |
FIELD: ventilation.SUBSTANCE: air filtration device 10 comprising a housing 12 containing a plurality of subsections 32, 34 and 36, at that each subsection is made with the ability to receive the filter element 26, 28 and 30. The inlet opening 18 is located in the first portion of the housing 12, and the air distribution system located upstream is in fluid communication with the inlet opening 18 and each of the subsections 32, 34 and 36. The air distribution system located downstream is in fluid communication with each of the subsections 32, 34 and 36, and the outlet opening 20 is in fluid communication with the air distribution system located downstream. The air distribution systems located upstream and downstream of are designed to provide the same rate of air flow passing through each subsection. With the use of this design, the overall product life can be extended with simultaneous minimizing the flow resistance of the entire filter.EFFECT: receiving controlled air flow passing through the filtering media.20 cl, 8 dwg |
