In case of indoor shelter
Authorities for public health can give the instruction to stay indoors, e.g. at home or in the office.
- Seal all entry routes as efficiently as possible
- Close and lock windows and doors
- Use wet towels and duct tape to seal gaps under doorways and windows
- Use tape and plastic, wax, or aluminum wrap to seal gaps around window air conditioning units
- Go to a basement or other underground area if possible