Hi Feelgood,
Here are a few links that can answer some of your questions.
http://argentina.usembassy.gov/
http://www.migraciones.gov.ar/paginanueva2/
http://www.bumeran.com.ar/
Good Luck!
I have a portable air conditioner unit. The fan recirculates the air in the room if you aren't using it for coooling. I use it constantly and it does seem to make a considerable difference. I am going to start looking for an air purifier, but if one can't be located the other unit can come in...