초록 ▼

A combined filter, for removing solid particles and noxious gases from air to be delivered into the cabin of a vehicle, as part of a ventilating, heating and/or air conditioning system, comprises two layers of a non-woven tissue such as polypropylene, between which are deposited activated carbon gra

A combined filter, for removing solid particles and noxious gases from air to be delivered into the cabin of a vehicle, as part of a ventilating, heating and/or air conditioning system, comprises two layers of a non-woven tissue such as polypropylene, between which are deposited activated carbon granules. The two layers of non-woven tissue are interleaved at least partially, so as to trap the granules between them.

대표청구항 ▼

[What is claimed is:] [1.]a grid; anda filter medium disposed against without being fixed to the grid, the filter medium comprisinga first layer of non-woven tissue,a second layer of non-woven tissue, andactivated carbon granules disposed between said layers said layers being interleaved to at least

[What is claimed is:] [1.]a grid; anda filter medium disposed against without being fixed to the grid, the filter medium comprisinga first layer of non-woven tissue,a second layer of non-woven tissue, andactivated carbon granules disposed between said layers said layers being interleaved to at least partially trap the activated carbon granules between said layers.