Yeh I know, its called a lot of pine tree air filters hanging from the rear view mirror

I am not sure on an SD, but I know on the w123 they used untreated horsehair in the seats....when this rots it makes a lot of nasty particles and smells....I also know the same is true for a lot of the foam products they used....it breaks down after so many years and becomes air born.....I have heard of people install cabin filters on these models but its not easy....then the only true way to rid the car of the particles and smells is to find and replace the items that are breaking down....this would also include cleaning the entire HVAC system...

So the easy answer in my eye....is no...

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