We built a new cooler room last summer and added a couple things over our past cooler to help. We have a concrete floor that all slopes to a drain. We added a 1 inch layer of pea gravel/small rock on the bottom under neath about 3-4 inches of cedar fiber. When we rinse the heifers in the stall the water drains faster to the drain in the floor with no puddling like we had last year without the rock. We also have an exhaust fan on a timer that runs 10 minutes every three hours so it brings in enough fresh air to change out the entire room. We have a simple vent on the other side of the room so when the exhaust blows out the air can get sucked in on the far side of the room. Also running a pitch fork every time you can will help alot as well. I would recommend setting something else up that gets rid of the ammonia source such as a good drain and air ventilation set up because using products to just neutralize the smell will run out and i doubt that a dusting of this or that will neutralize all that urine that they do in a day.