What face masks or respirators are effective for the disposal of dog feces and urine? CONT...?

I am purchasing a home, it is a foreclosure and the people let their dogs defecate in the home. The carpets are being ripped up, there is plywood underneath so were going to sand it down. If that does not work, well rip them up. My Question Is : What face masks or respirators are effective for the disposal of dog feces and urine? In addition, what health risks are involved? Also, what chemicals are secreted from the dog feces are urine? (I鈥檓 aware that pneumonia is a product of urine, but what about feces?)What face masks or respirators are effective for the disposal of dog feces and urine? CONT...?
Any dust mask will suit the purpose. You don't need anything special. I'm assuming that you would be wearing gloves to rip out the stuff, and don't plan to be eating in amongst the dust and debris. Gerbies won't eat through a dust mask anyway. Most bacteria would have been long dead anyway- lack of moisture and incorrect temperatures would have done them in. The stink- well that's a different matter all together, and one that isn't a health hazard. It's just hazardous to the contents of your stomach. Pneumonia is not a product of urine. Do you mean ammonia? That would have long since evaporated anyway. Your plywood may be stained, but it won't pose a health hazard to you. You could clean it with any standard household disinfectant you liked, and let it dry well- and then re-carpet. I know the situation is rather disgusting sounding, and definitely unhygenic with the carpet in place, but honestly, once you rip out the carpet and padding- washing the underfloor is really all you need to do. You really don't have to sand it off at all.