The main purposes of bomb shelters is not to protect you
from direct hit
or bomb explode near you.
The HS protect you from shrapnel and flying debris.
Near 80 to 90% of civilians casualty in war caused by shrapnel and
flying debris.
2.Bomb shelters in sg.
A.From 1987,public bomb shelters in basements of HDB,then later on
street level (#01).
B.For all residential units which building plans submitted from
1997,house hold shelter are mandatory(HS).There are few
residentials buildings completed
in 2006 which bomb shelters in public stair cases.No more inside
the flat.
C.Community Centers.New or upgraded schools ,below the basket ball
fields.
The shelters are usually used as shooting range for air
rifles.
D.TTS and Changi hospitials surgical theaters.
E.All MRT stations with this sign.

The both ends of tunnels will be sealed by metal blast doors and
MRT
stations will be pressurized to prevent outside air to go in.
Decontamination chambers to clean people going into the
shelters.
Human waste into plastic bags---dry toilets.
3.SCDF should tell people DO and DONT inside bomb
shelter
Inside HS,it is air tight without ventilation.Avoid talk loud and
No cooking etc.
Aged and kids etc must be trained stay inside the stuffy HS.