Lets say you lived in a gravitational experimental room

He's talking about a hypothetical chamber with increased gravitational acceleration, whether from being on a planetary body with more mass, less radius, or artificial "gravity" caused by rotation. In this case, any object, bullet, person, whatever, would fall faster.

 I was talking about this

The only thing that is different however is that small things drop like bullets to the ground, so you have to be very carefull not to drop anything on your feet.

However, from knowing how much of human blood is made up of Iron, and other physical compounds. It's unclear to say if you will die from being in this facility for too long. The iron in your blood might weigh down on your vains and cause you to bleed internaly. The food you eat may cause you to have multiple ulcers, and you might not be able to use the washroom due to major injuries due to the high gravity

I interpreted this as "smaller things drop faster than larger ones", which would mean that somehow, acceleration due to gravity is not constant as it is in the real world. Actually, Random_Overlord's system would make more sense if the force applied is constant, because otherwise bullets cannot drop faster than people if they have less mass.

Actually making such a chamber wouldn't be too difficult to do. It wouldn't require any advanced technology, just a rotating circular hallway with a slanted floor.

How would this increase gravitational force on objects floating in the air? How would this increase gravitational force in the system Random_Overlord described?