Profile: publicacc

My question is if I have 2 products A and B. A has 1 room, B has 2 room (Room is specifice attribute). So the filter will have 2 check box that 1 room and 2 room. When I check on 1 room check box both of A and B was showed. I don't want that, I want only A will be showed. Can you help me? Thanks