BOSCH6045C HEPA Cabin Air Filter - Compatible with Select Lexus LS400

Fits the Lexus Rx 300 perfectly. This HEPA air filter is way better than the OEM Denso that comes with it. However, there's a trade off, I notice a significant reduction of airflow (maybe 2/3rd the usual amount of airflow) with this filter since it filters out particulate at .3 microns while the OEM filters out 1 microns. I notice the air is a lot cleaner than the OEM filter. Before, when I come to a stop at a red light behind a really old car, I can smell the exhaust fumes coming from it. But I haven't notice any exhaust fumes coming from the air cabin after using this filter. To me the trade off is totally worth it, especially from a driver that has to deal with crazy Los Angeles traffic everyday.

Driving in areas with high particulate can be unpleasant; with this filter installed, turning up fan with recirculate enabled results in a very pleasant atmosphere with much higher subjective breathability index.

This does not fit Lexus 1999 LS400 although it said Bosch Automotive 6045C HEPA Cabin Air Filter for 1993-2000 Lexus LS400.I bought it and didn't have the time to installed it When I do, It is too late to return it.

The cabin filter tray in the 97 Lexus LS400 has little slots on the front and back ends, designed presumably to hold the accordion filter edges in place. But this Bosch 6045C filter has the accordion folds running perpendicular to these slots, preventing it from fitting into the tray (the previous dealer-provided OEM filter that it replaced has the folds running parallel to the slots, allowing the edges to slide into the slots). The Bosch filter cannot be turned 90 degrees because it is a rectangle, not a square. Using a sharp blade, I cut the ends of the folds from the edging, and in so doing managed to make it fit. I did not want to go thru the hassle of returning it. But this filter DOES NOT FIT a 1997 Lexus LS 400.

The manufacturer correctly lists that this fits the 2006 Highlander Hybrid.

Had to modify this with a razorblade to get it seated into the filter tray. It does work but was a tight squeeze. Make sure to get the direction of the airflow right too. With all said it reduced my airflow by about 25% but I am happy it filters dangerous exhaust fumes.

Good to keep smog and pollution particles out of your car.

Listing said it fits my 1998 Lexus LS400. It actually does not unless you crush and cram the filter into the tray and add some tape, and at that point it's not functioning optimally. I'm sure it works perfectly in other cars, but they need to exclude my car from the list. I've contacted the manufacturer about this and got no response.