One important issue needs some scientific scrutiny:
Being blown out into vacuum by sudden decompression of the roomI'm not going into what happens to the body, since you can read that everywhere and there are lots of medical docs about this.
I'm going to talk about the physics of the blow-out or explosive decompression.
There are some people arguing if it's being blown out or being sucked out. The reason for this is that gas tends to equalize pressure, therefore is being drawn to the vacuum. Hence, it is being sucked by the vacuum. But what about the human body? Well, the pressure in the room is x human, and 0 human in vacuum. However, humans do not automatically move toward the vacuum, hence, a human is not being sucked. Simple proof is to have a human in a vacuumed room and open the door to vacuum. Nothing would change.
So I'll side with humans are being blown out.
The problem is to determine how fast air escapes into vacuum. Well, if you know a bit of physics the logical bet is on the mach 1 speed because that's the highest speed at which a gas gives way.
However, movement always comes at a price of energy. And for a gas energy is provided by temperature and pressure. This leads us to gas molecule velocity, the inert velocity at a certain state.
http://www.chemteam.info/GasLaw/gas-velocity.htmlv = √(3RT/M) , with R = 8.31447 J mol^(-1) K^(-1); M = the molar mass of the substance, expressed in kilograms; T in Kelvin; v in m/s
You should have heard about this in highschool and done some calcs in college/university.
Lets take an average cargo bay on a starship with a an area of 20x20 m.
Air density is 1.2041 kg per m^3, 20 C degrees and 1 bar pressure.
A human silhouette is supposed to be 1000 in^2 = 0.64516 m^2 (I dunno if this is correct since skin area is 2 m^2).
Air molecule mass is 28.97 kg
Lets say a human stand right in the middle, 10 m away from the inner wall. Then the room's outer wall, force field or door is suddenly gone.
The air mass between the human and the inner wall is
0.64516 m^2 * 1.2041 kg/m^3 * 10 m =7.76837156 kg
Due to air's composition lets just say the gas velocity is about 650 m/s instead of the close to 700m/s.
Is that enough to blow a human? Well, taht depends on the
Impulse.
I = F t = m v, with F force, t time, m mass, v final velocity.
With this we can calculate how fast a human is being blown.
An average human weights 180 lb = 81.72 kg.
This gives us I = air mass * air speed = human mass * blown speed.
We get
blown speed = (air mass * air speed) / human mass
=(7.76837156 kg * 650 m/s) / 81.72 kg
=61.789543734703866862457170827215 m/s
So a human gets blown away at about 62 m/s (223.2 kmph) if he stands 10 m away from the inner wall. That nearly as fast as a normal parachute jumper's maximum speed.
Since things are linear in this case (under the same conditions) you can just say a human gets blown away at 6.2 m/s for every m distance from the inner wall. As long as the distance is less than the gas velocity, though. That means max blown speed possible depends on the gas velocity, and at least a room of a size for it to need a second to cross.
Edit: Forgot to mention this does not account for human aerodynamics.
If I remember right a sphere is c=0.47 so taking this into account the forces applied are halfed, hence, the blown speed too.