A clean room computer has to control particles as well as survive cleaning. Here is what separates one from a standard panel PC, how cleanroom classes change the specification and what to ask for in pharmaceutical, electronics and medical device production.
A clean room computer is an industrial PC or panel PC built so that it adds no particles to a controlled environment and survives the disinfectants used to keep it clean. In practice that means a fanless, sealed enclosure with no vents, smooth wipeable surfaces, a flush touch screen that works with cleanroom gloves and connectors that seal, so the computer can sit inside an ISO 5 to ISO 8 room without compromising it.
A clean room, or cleanroom, is a room in which the concentration of airborne particles is controlled to a specified limit. Air is supplied through HEPA or ULPA filters, rooms are held at a positive pressure over their surroundings, and people enter through gowning areas because they are the largest source of particles in the room.
Cleanrooms are used wherever a particle or a microbe can ruin the product: sterile and aseptic pharmaceutical manufacturing, semiconductor and electronics assembly, medical device production, biotechnology and precision optics. That makes them different from the wet food-processing areas covered in our guide to hygienic design for washdown computers, although some pharmaceutical and food facilities need both.
A standard industrial panel PC is built to survive a factory, not to protect a controlled room. Cooling vents and fans move air through the chassis, textured plastic and painted surfaces trap particles and can shed them as they wear, and open USB and LAN ports, a separate keyboard and a mouse all add surfaces that are hard to clean. Every one of those details either generates particles or gives them somewhere to collect.
Cleaning is the second problem. Cleanroom disinfectants are applied every shift, often by wiping and sometimes by fogging, and they soften plastics, craze polycarbonate and attack unsuitable seals. A clean room computer is designed the other way round: the enclosure is sealed and smooth first, and the electronics are fitted to suit it.
Cleanrooms are classified under ISO 14644-1 by the maximum number of airborne particles per cubic metre. Sterile medicine manufacturing in Europe adds the EU GMP grades A to D, and the former US Federal Standard 209E classes are still widely quoted. The cleanroom classes FAQ explains the full scale.
| ISO class | Max particles ≥ 0.5 µm per m³ | Former US class | Typical EU GMP grade | Typical use |
|---|---|---|---|---|
| ISO 5 | 3,520 | Class 100 | Grade A; Grade B at rest | Aseptic filling, wafer processing |
| ISO 6 | 35,200 | Class 1,000 | – | Semiconductor, optics |
| ISO 7 | 352,000 | Class 10,000 | Grade B in operation; Grade C at rest | Electronics, medical devices, pharmacy |
| ISO 8 | 3,520,000 | Class 100,000 | Grade C in operation; Grade D at rest | Packaging, gowning, controlled areas |
In ISO 7 and ISO 8 rooms, a sealed, fanless panel PC with a wipeable front is usually accepted inside the room. In ISO 5 zones and Grade A and B areas, equipment is kept to a minimum, so the screen is often mounted flush in the wall or behind a window with the electronics in the service corridor. The site’s contamination control strategy has the final say, so bring the cleanroom class and the cleaning procedure to the specification from the start.
Our stainless steel panel PCs and monitors are fanless and sealed, with flush fronts that can be wiped down with cleanroom disinfectants.
These are the features that separate a clean room computer from a standard industrial panel PC, and the ones we work through with you before recommending a platform.
A fan draws room air through the chassis and exhausts it again, disturbing the controlled airflow and carrying particles with it, and the dust it collects inside is released every time it spins up. A fanless design cools through a heatsink or the housing itself, so there are no vents, filters or moving parts. Every stainless steel panel PC we supply is fanless, and wide-temperature models are available.
A sealed front of at least IP65 keeps disinfectant and dust out during wipe-downs. Where rooms are sprayed or washed, choose IP66 or IP69K all round. Our guide to IP ratings explains what each level is tested against.
Cleanrooms are wiped with 70% isopropyl alcohol, hydrogen peroxide and sporicides such as peracetic acid, and some are decontaminated with vaporised hydrogen peroxide. Stainless steel housings and sealed glass fronts tolerate these well; check the gasket and seal materials against your disinfectant rotation, especially if the room is fogged.
A true flat front with no bezel lip, hygienic fasteners and O-rings seated flush leaves nowhere for particles or residue to settle, and lets a single wipe clear the whole face.
Cleanroom staff work in gloves, so the touch screen has to respond through them. Glove-tuned PCAP works through thin nitrile or latex gloves; resistive touch suits thicker or double gloves. A touch screen also removes the keyboard and mouse, two of the hardest items in a room to keep clean. Our guide to touch technology compares the options.
VESA mounting lets a panel PC sit on a swing arm, yoke or pole, clear of work surfaces and easy to clean behind. Panel mounting seals the screen flush into a wall or enclosure so the electronics sit outside the room, which is often preferred in ISO 5 and Grade A and B areas.
LAN, serial, USB and power on locking M12 connectors keep contaminants out and cables secure, for barcode scanners, label printers and RFID readers. Wi-Fi and 5G through sealed antenna covers reduce cabling further. In electronics cleanrooms, ask for the housing to be bonded to the site earth to support ESD control.
Pharmaceutical and biotech. Electronic batch records, MES terminals and equipment HMIs in Grade B to D areas, where EU GMP Annex 1 and the site’s contamination control strategy govern everything that enters the room. See our medical and pharmaceutical solutions.
Semiconductor and electronics. Tool interfaces and line terminals in ISO 5 to ISO 7 rooms, where particle control and ESD protection matter as much as sealing.
Medical devices. Assembly and packaging stations in ISO 7 and ISO 8 rooms, with traceability scanners and label printers connected through sealed I/O.
Food and beverage. High-care and high-risk areas that combine particle control with washdown, where the hygienic design principles for washdown apply as well. See our factory automation solutions for the wider production line.
Environment. Start with the cleanroom class, the disinfectants and whether the room is ever washed or fogged. That sets the sealing, the housing material and where the unit can be mounted.
Performance. Match the processor and screen size to the software, from a simple batch-record terminal to an MES client or a vision inspection station.
Expansion. List every device the computer must connect to and keep each connection sealed, through M12 connectors, PoE or wireless.
Lifecycle. Validated processes make changes expensive. Choose a platform with long availability and a controlled bill of materials so a replacement unit matches the one you qualified.
Browse our stainless steel panel PCs, our front IP65 panel PCs for flush wall mounting and our stainless steel monitors.
Cleanroom classes define how many airborne particles a cleanroom may contain. ISO 14644-1 sets nine classes, from ISO 1, the cleanest, to ISO 9, based on the number of particles of a given size per cubic metre of air. ISO 5 to ISO 8 cover most manufacturing, and EU GMP adds Grades A to D for sterile medicines.
An ISO 7 cleanroom is a controlled room that contains no more than 352,000 particles of 0.5 µm or larger per cubic metre of air, as defined by ISO 14644-1. It is equivalent to the former US Class 10,000 and is widely used for electronics assembly, medical device manufacturing and pharmaceutical preparation.
IP65 defines the minimum waterproof rating for any "weather-resistant" claim — dust-tight against all particle ingress, and protected against low-pressure water jets from any direction. Here is what that means in practice, how it is tested, and when it is the right specification.
Tell us the cleanroom class, the disinfectants your team uses and how each screen will be mounted. We will recommend fanless, sealed panel PCs and displays, and build them into a system ready to install.
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