an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air

Full Title

Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being > an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air