text: Yes. It depends on how good or how clean the filters are, how old the machine is, whether it's a window unit or central air, etc. And pollen can get into a house many other ways... not just through air conditioners. People bring it in on their clothing, pets bring it in, it can come through cracks in doors and windows, etc. Go ahead and use the air conditioner. It probably won't make much difference in the pollen count inside the house.