making something sanitary (free of germs) as by sterilizing
A basic emergency supply kit could include the following recommended items:
• Water, one gallon of water per person per day for at least three days, for drinking and sanitation
• Watch your pets closely and keep them under your direct control. Watch out for wild animals, especially poisonous snakes. Use a stick to poke through debris.
the act of supplying fresh air and getting rid of foul air
• NEVER use a generator inside homes, garages, crawlspaces, sheds, or similar areas, even when using fans or opening doors and windows for ventilation.
Minimize your movements to a few steps to a nearby safe place and if you are indoors, stay there until the shaking has stopped and you are sure exiting is safe.