[Case Study] Transforming an Existing Room into a Clean Room.

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last updated：Sep 10, 2025

蒲田工業

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Transforming an existing room into a clean room.

Due to the increasing sophistication of market demands for products, we have received inquiries about wanting to perform cleaning and painting in a clean environment. Since cleaning and painting will be done using organic solvents, appropriate exhaust treatment is necessary. To keep the introduction costs down, it was essential to continue using the existing air conditioning equipment while managing the temperature. Issues: 1. The existing room is constructed with typical building materials (gypsum board), which do not consider dust generation. 2. If floating dust adheres to the products during cleaning and painting, it will reattach, making it impossible to meet high-quality standards. 3. A design is needed that prevents a decrease in cleanliness during entry and exit from the cleaned room and during the transportation of products. 4. Simply exhausting air will create negative pressure within the clean room, so it is necessary to supply clean air to maintain positive pressure overall. 5. We want to process the odors generated during cleaning and the paint fumes produced during the painting process with a single exhaust system.

Related Link - http://www.kamata.co.jp/html/solution/2013/02/1new…

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We propose the realization of a Class 10,000 cleanroom by utilizing existing walls and air conditioning systems, modifying the building structure as needed for cleanliness, and introducing a circulation-type floor-mounted FFU (Fan Filter Unit). This approach allows for significant cost reductions compared to replacing with cleanroom air conditioning. We will design the exhaust system to meet your requirements, allowing for shared use in both the cleaning and painting processes. Key Points: 1. Replace the ceiling material from gypsum board to decorative calcium silicate board to eliminate dust generation from the ceiling. 2. Install air shower-equipped ante-rooms at the sheet shutter and double doors, blocking dust from the outside. 3. To enable shared use of the exhaust system, install a rail-mounted exhaust hood that can be moved between the continuous cleaning and painting workspaces. This ensures exhaust efficiency by positioning the hood close to the work area. 4. To prevent paint from adhering to the exhaust system (ducts and blowers), install a stainless steel mesh filter (SUS demister) on the exhaust hood. 5. To prevent negative pressure due to exhaust, install FFUs in the ceiling and introduce outside air.