I say if anything ther amy be something in the room in whcih the snakes was place that possible toxic. I not claiming that the person living unhealthy but there is also another possible outside point to look at.
it also possible if in a complex (townhouses) that someone treated the building for something and the fumes were in the cage and settle to the bottom. I also suggest befoer using the cage I redo the entire cage ot be safe and to insure you don't have a repeat of this.
