Air conditioning external filter: In fact, many cars are not, including and , but we developed specifically for high-polluting environment outside the filter, and still no improvement at this pointthe car in the fan mouth with the Is a black fence, that device can only filter leaves of impurities and the like, can not filter dust and harmful gases, fans exposed for a long time outside, the fan above the dust will inevitably adsorb impurities, once the air is humid, fan blades The above dirt will degenerate, moldy, resulting in pungent odor and harmful gases, and now we developed this external filter, is based on the principle of double-filter production ofeasy to install, simple and effective protection Fan, filter harmful substances in the air to achieve the effect of double-filter, the car will become high-quality , air-conditioning fan will not often go to the cleaning.High filtration efficiency.High dust holding capacity.Good temperature Resistance.Economical, practical and easy to install.:Item Name: HEPA Air Conditioning Filter,External Filter ,Carbon Cloth FilterPart Nunber: 1658375-00-A,CU47025-2Fit for Y 2021-2023Colour:As ShownMaterial:Melt blown composite paperPackage Contents:2 x air conditioner filter2 x External Filter2 x Carbon Cloth FilterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.