| 摘要 |
FIELD: housing birds. ^ SUBSTANCE: bird cage set comprises collector for dung, passage diverging downward and defined by cages, ventilation passages provided with ports, and fan connected with the distributing air ducts. The front grid and bottoms of the cages as well as the bearing stiffening ribs are made of dielectric materials. The ports in the passages are overlapped with grids made of conducting materials, and their mesh size do not exceed the mesh size of the cages. The grids are connected with the negative poles of the air ionizers. ^ EFFECT: improved bird housing. ^ 2 dwg
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