I suspect the rodent odors cannot be eliminated easily. Any chemical would have to soak in as far as the rodent urine and droppings have permeated over time. If you have fiberglass insulation, it will be even harder to get rid of the odors.
I strongly advise you to wear a respirator when in the attic. Hantavirus comes from rodent droppings, especially fresh ones stirred up. Although your risk may be small, it is better to be safe.
If it were my house and it was fiberglass insulation, I would get a plastic suit, plastic gloves, and a full face respirator. Then I would remove all the fiberglass and replace it with cellulose. The cellulose has boric acid to prevent burning, insects, and rodents. Plus, it does not allow air movement or water like fiberglass.
good luck
gary
I strongly advise you to wear a respirator when in the attic. Hantavirus comes from rodent droppings, especially fresh ones stirred up. Although your risk may be small, it is better to be safe.
If it were my house and it was fiberglass insulation, I would get a plastic suit, plastic gloves, and a full face respirator. Then I would remove all the fiberglass and replace it with cellulose. The cellulose has boric acid to prevent burning, insects, and rodents. Plus, it does not allow air movement or water like fiberglass.
good luck
gary