Prepare gas mask
Gas mask filters depending on how many family members you have
Prepare weapons when people get scared they do stupid stuff
Med kits you may have an encounter with another person who needs it or you may need it
And bring lots of water and food
Vitamin D percentage.
Only vitamin a and c are required to be present on a food label.
Have a nice day c:
Diffusion.
diffusion acts passively, and the oxygen and carbon dioxide move to the area of lower concentration
