Had a nice pretty 8' x 10' heavy Persian carpet about 25 years ago. It was an item brought from states to adorn the sala. It was used for about 2 years and then sold. It was not suited for the Dominican climate. It harbored mold, mildew, odors, and who knows what other microbes, very unhealthy. If one has a rug and running the AC 24/7 to cool the residence and keep humidity out, then it may survive unblemished a reasonable time. Yet, transient owners of rugs in an AC residence hazard risks to them when they are away of long periods time. Running AC in an unoccupied home is costly. It is a matter of weighing one's benefits vs drawbacks.
PJT's advice is to shy away from rugs.
Regards,
PJT