Nice movie but it has some science mistakes
1. A hazmat suit made with duct tape is not going to work. It will likely leak because if you move around, the tape will come off at certain points.
2. I don’t know what she used to filter the air but I don’t think it will work.
3. Cooling a steel lock to break it would not work like that. It would probably reach -5 °C. You need to dip it in LN2 to reach about -150 °C, then steel becomes brittle.
4. Perchloric acid is not flammable. It also contains a large quantity of water.
5. When the perchloric acid reach the electrical wire, nothing would happen. Such wires are made of PVC and acids don’t effect PVC.
6. How did the air filter system work? Viruses and bacteria will likely pass through.
7. Howard should have had a Geiger counter to measure the radiation outside.
8. The aliens look like worm things. They don’t appear intelligent.