Clean Room System


Our Custom-made solutions are in line with the latest technology and are derived from a sophisticated market-oriented experts system. Naturally we introduce our know-how from other health care projects in the world.

MMA’s experts are used and pleased to be involved with health care projects and to cooperate with hospital management, medical doctors, consultants and construction firms.




① Condensing Unit

② Air Handling Unit

③ Dampers

④ HEPA filter

⑤ Plenum frame

⑥ Diffusers

⑦ Supply grilles

⑧ Return grilles

Green) Fresh air

Blue) Supply air

Red) Return air


Clean Room Design Guide


* Patterns of Air Flow

Laminar flow type (horizontal, vertical), Turbulent flow type, mixed type, tunnel type.

* Lay-out

Lay-out is to be organized in consideration for the working efficiency and cleanliness level. Work raising dust is to be separated from other works. (The entrance, passageway, utility and maintenance have to be considered.)

* Equipment

Clean room consists of Air Shower (for removal of dusts), Pass Box (for control to the indoor pressure), clean and clean locker (for safekeeping of the goods and packages) Thus, one have to understand the function of each equipment.

* Control to Working Persons and Materials

Working persons and materials carried in clean room mainly raise dust. Working persons have to know the basic knowledge for clean room.

* Cleanliness level

Cleanliness level of clean room is determined by the type of air flow, the number of ventilation and indoor pressure.

* Utility

Equipment which supply an energy have to be flow, the flexibility of Layout, Besides, one should pay an attention not to decrease the cleanliness level for a maintenance.

* Safety & Emergency Plan

Provision against a fire and a gas leak is required because clean room is shut tightly. For the equipment affected by a power failure, the use of emergency power source should be examined.

* Structure & Materials

Indoor surface have to be smooth in order to maintain the air flow and to prevent a dust from being piled up. For the selection of the materials, the low level of dust appearance and easiness of detaching the particles adsorbed on the materials have to be considered. In special case, the materials having chemical resistance, moisture resistance, and fire resistance are used.