My '95 960 has sucked enough tree leaves, pine needles, etc. through fan blower air intake and into evaporator chamber to turn into dirt, grow mold, blow out air vents and block drainage for evaporator condensation. Whereupon water soaked through carpets before I knew what had happened. So much mold grew on every interior surface both visible and hidden that one could not breathe inside the car even after several cleanings and cans of sprayed everywhere. I had to take out both front seats and the rear seat and all carpets and such to throroghly clean them. I also had to clean out the evaporator, fan blower, air ducts, etc. Then, I looked for a cabin or even engine air filter that I could install in the air intake to keep tree leaves and pine needles out, but without luck. Finally, I bought a Shop-Vac "3 Reusable Dry Filters and Mounting Ring" (Shop-Vac P/N 901-07) at Pep Boys for about $5. I suppose it can be found through www.shopvac.com too. The bag contains three large sheets of filter paper, one sturdy plastic ring and one large rubber band. I took one sheet of paper and cut from the edge one round piece with a radius about two inches larger than the plastic ring (or four inch larger diameter). Put this round piece of paper over the air intake and pushed the plastic ring down over it (narrow end down). Perfect fit! Of course, one has to remove windshield wipers and that plastic drainage channel to get to the air intake. I will cut the rest of the sheet of paper to fit over air intake inside the car (below the glove compartment and behind plastic trim) to hold it in place with the large rubber band. Two more sheets of filter paper are left over for future changes. I tried the A/C with the blower set at maximum speed and the paper filter looks like it will remain in place and not blow into the squirrel cage. If anyone has comments, caveats or better solutions to the problem, I would like to hear them. For instance, a charcoal impregnated filter that keeps diesel fumes and like pollution out of the car would be nice. Until then, this is the best I can share with all my dear friends at Brickboard. As always, best regards.