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It includes Laminar (Vertical and Horizontal),
Turbulent, Mixed and Tunnel; consider characteristics
of each type and the purpose of use for selection.
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The cleanliness level of clean room is determined
by the degree required for each product. You must fully
check air flow, number of ventilations and indoor pressure.
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The layout must meet characteristics of task and the
cleanliness level. Any task causing much dust should
be separate from other tasks and consider completely
entry, pass, utility, maintenance, etc.
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The internal surface should be smooth so that the
air flow cannot be dispersed or dusts cannot be built.
You should use materials which cause little dust; particles
are not well attached to; and allow an easy cleaning.
Chemical-, humidity-, or fire-tolerant materials may
be used depending on tasks.
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Equipments consisting of a clean room include air
shower and pass box for removing dusts; relief damper
for keeping pressure; and clean stocker and clean locker
for storing goods or packing. You must fully understand
functionalities of each item.
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Working persons and materials incoming from the outdoor
are the primary cause of dust. Working persons must
have basic knowledge about clean room, including dust-free
garment and the matter of make-up.
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The system to provide energies including water, gas
or electricity should be selected based on the type
of airflow and flexibility of layout. A careful attention
is required for maintenance not to cause a decrease
of the cleanliness level.
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A clean room is a closed structure so requires
measures against fire or gas leakage. An emergency
power facility should be considered in equipments
that can meet any problem by blackout.
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