Cabin Air filter

Trying to find out if my 99 EB has this or not. Parts guy says yes. Should be under the glove box. I dont see it. Hastings Filters says the 1997-on has them. 1998-on Navigator has them. I dont think mine has one. The drawing from Hastings doesnt match up. thanks

My Haynes Repair Manual Pick-ups & Expedition 1997-2002 (includes Navigator) does not mention this part in the heating or air conditioner maintenance or in the filter section. Let me know if you find it.