Cleanroom Design Components

Cleanroom Design Components

Cleanrooms by United offers a wide variety of customizable cleanroom design options.  Here are just a few examples of the cleanroom elements that can be customized for your specific application and according to the needs of the cleanroom classification you are using.

Cleanroom HVAC Systems

Fan Powered Module                           

Fan Powered HEPA Filter Module


Ducted Module                           

Ducted HEPA Filter Module

Cleanroom Hepa Filters

Fan Filter Units include a 99.99% efficient HEPA filter, 30% ASHRAE pleated type pre-filter, seismic clip suspension points, safety switch which disables the unit while servicing, and solid state variable speed control with RFI suppression, allowing the airflow to be fine tuned. Housings are fabricated from steel with a white powder coat finish and include seismic clip suspension points. The energy efficient N310 motor blower is a low watt backward curved impeller, single phase, permanent split capacitor type motor blower assembly with thermal overload protection. Units are available in 115 Volt (60 Hz), 208-230 Volt (50/60 Hz) and 277 Volt (60 Hz). Final filters are protected with a white epoxy diamond pattern grille and are tested according to accepted procedures as described by the Institute of Environmental Sciences (IEST) and/or ISO standards. The standard HEPA filter is 99.99% eff. and an ULPA grade 99.9995% eff. filter is available as an option.

Cleanroom Lighting 

Modular ceiling lighting                            


2 x 4 Module

Modular ceiling lighting                            


1 x 4 Module (surface mount)

Cleanroom Lighting with Sealed Housing

Totally sealed housings maintain ceiling integrity and protect against infiltration of particles and airborne bacteria. Housings are painted with a white powder-coat finish and spring loaded latches on each side secure the hinged door lens frame in the closed position. The door frame is removable without the use of tools, permitting re-lamping from room side without contaminating the clean areas.
Standard fixtures feature a 120-277 multi-voltage T8 electronic ballast with (4) medium bi-pin lamp receptacles, (lamps not included). The ballast is mounted inside the housing and is removable from room side, maintaining ceiling integrity. Fixtures are UL listed and manufactured in accordance to USDA, FDA, and NSF guidelines. All fixtures have been tested and reported in compliance with Federal Standard 209 and are suitable for Class 100,000 to 100 applications.


Modular Cleanroom Doors and Entryways


Single entry doors are 1-3/4″ thick, 3068 and come with safety viewing window (optional). Doors are field adjustable and leveled to insure proper operation. Double doors (6068) come with the same finishes and features as single doors. Additional sizes include widths of 4′+ and heights from 8-10′+, optional doors and entries include single and double aluminum framed doors with full glass, air-showers, manual sliding doors, motorized and hi-speed automatic roll-up doors.


Cleanroom Window Options

Cleanroom Windows

Standard cleanroom windows are 40″ high x 46″ wide, with 3/16″ tempered safety glass. Our window units are manufactured for seamless integration with the wall and ceiling systems.  We also off dual pane window units, wire, tinted glass (UV), and and break-resistant polycarbonate options.


Cleanroom Electrical Design

The selection of the best electrical system for your cleanroom can vary depending on your cleanroom requirements.  Our experts can help you select the best electrical methods for your unique cleanroom specifications.  With UL listed components conforming to National Electric Codes, our Raceway system is made up of pre-wired connections for light switches, 110v outlets for lights and fan powered HEPA air filtration units. Other power options are also available.

Cleanroom Ceiling Tile

Ceiling Grid Tile

Our standard cleanroom ceilings are 1” & 1.50” grid finished in white painted enamel. Other ceiling grid sizes, specialty finishes and gaskets are available. The ceiling grid is supported by heavy duty hanger wire recommended at least 4’ on center. Standard cleanroom ceiling tiles are ½” sheetrock core with a vinyl covered face on one side with sealed edges. Other styles and materials of construction are available.  We offer press board or honeycomb cores, painted steel, painted aluminum or plastic laminate.

Cleanroom Wall Material Options

Cleanroom wall panels are available with various surface finishes including: vinyl, high pressure laminates, FRP (fiberglass reinforced plastic), painted steel, or painted aluminum (conductive or non-conductive). The cleanroom wall panel cores are expanded polystyrene, isocyanurate or gypsum depending on the cleanroom requirements.  For clients needing a tightly controlled environment to perform their operations, we design cleanrooms with insulated wall systems that help reduce unwanted particulate from entering for maximum contamination control

Air Showers


All cleanroom air showers have a plastic laminate finish and all surfaces are sealed.  The air showers come equipped with commercial duty aluminum doors with 1/4″ tempered glass, 99.97% absolute filters, and 30% pre-filters.  A micro processor control system with 5 HP direct-drive (except on SD4848) that is factory pre-wired & tested.  All air showers have a disconnect / motor starter / with short circuit and overload protection and emergency panic switch.



Cleanroom Pass Through Chamber - Custom Oversized

cleanroom pass thru chamber 300x225

Also referred to as pass through chambers, pass through boxes,  pass through windows, or pass through cabinets, we offer a wide array of cleanroom pass thru chambers. When you need to transfer parts and equipment into and out of a cleanroom, a pass thru unit is the answer.  From small wall mount units to large floor mounted units, our cleanroom pass thrus are available in just about any finish from plastic laminate to electro-polished stainless steel and are available with mechanical and automated interlock mechanisms.    Custom Wall mount Style (size shown 48”W x 36”H x 20”D)

Cleanroom Pass Through Chamber - Floor Mounted

• Pass through chambers allow for contamination-free transfer of materials in and out of the cleanroom
• Ideal for general use applications for particulate control, with no specific sterilizing protocol.
• Pass thru doors feature closed cell neoprene gaskets to help maintain pressure differentials between rooms to prevent cross contamination.
• Design uses non-shedding materials.
• Mechanical interlock allows only one door at a time providing automatic protection against cross-contamination
• Reduces traffic in the cleanroom and eliminates excessive garbing
• Stainless steel-framed doors, latches and hinges eliminate corrosion and extend service life
• Material options include HP Laminate, 304 Stainless steel, SD PVC, Polypropylene

Cleanroom pass through - Floor Mount Style (size shown: 36”W x 48”H x 48”D)

Cleanroom Pass Through Window- Floor Mount Exterior Finish


All of our cleanroom pass through chambers are available in standard or custom sizes to meet your specifications.  A cleanroom pass through allows staff to pass materials into and out of the cleanroom without having to gown to enter the cleanroom and then exit.

This is the exterior finish of a Floor Mount Style Cleanroom Pass Through Chamber (size shown: 36”W x 48”H x 48”D)

Cleanroom Pass Through Chamber - Standard Size 2 x 2


A cleanroom pass through allows staff to pass materials into and out of the cleanroom without having to gown to enter the cleanroom and exit.  Pass thru chambers provide an extra level of convenience as well as protection from contamination.  The most common size for a cleanroom pass through chamber is 2’W x 2’H x 2’D in a wall mount style as shown here.

Cleanroom HVAC Systems

Cleanrooms by United has proved itself as the industry leader in fabricating the proper heating, cooling, and ventilation systems to keep our cleanroom systems operating up to today’s stringent standards. We can develop a custom, compliant system to ensure proper design criteria is achieved. This is accomplished by allowing appropriate pressure cascades of the clean area at a precise temperature and humidity per your requirements.  We also can provide custom automated control systems for your cleanroom hvac control.

Cleanroom Fire Suppression Systems

Fire suppression systems protect your investment from unforeseen accidents in the workplace. Our systems meet or exceed National Fire Protection Association code requirements. We offer a wide selection of finished sprinkler head designs from semi-recessed heads to custom concealed (pop off) applications to fit needs.

Guard Rails

Modular guard rail

Protect your investment with United’s Guard Rail System. Constructed from heavy-duty steel rails and mounted to universal structural steel columns, our guardrails are made to absorb the impact exerted by forklifts or other mobile equipment. Available in single rail and double rail systems.

Cleanroom Pressure Gauges

Magnehelic Pressure Gauge 300x235

United offers both mechanical and digital magnehelic pressure gauges to ensure proper air requirements are achieved. This information can also be sent to a BAS system and can be monitored via computer for larger facilities with multiple cleanrooms.

Cleanrooms with UV Protective Windows and Lighting

Ultra Violet Safe Windows and Lighting

A UV film application can be added to windows and lighting to keep your cleanroom UV safe.  We offer uv protection film for both windows and lighting in cleanrooms if needed for your specific cleanroom specifications.

Cleanroom Flooring and Cleanroom Walls with Expoxy Painting

Epoxy Flooring

Cleanrooms by United can provide epoxy painting of existing cleanroom walls and floors to ensure your clean room environment is properly sealed and easy to clean.

Cleanroom Roll Up Doors

High-speed cleanroom grade roll up doors allow access to the controlled environment while limiting the possibility of outside contamination as room recovery rates are much better than conventional commercial grade steel roll up doors. There are many sizes and colors of high speed roll up doors for your cleanroom application to choose from. Talk to one of our controlled environment specialists to learn more.

Cleanrooms with Raised Access Flooring

One of the cleanroom flooring options we provide is raised access flooring.  Raised flooring can be used in many applications and can hide services such as electrical, water and many others. This access flooring is available in solid or perforated surface and can also be used as a return air chase for more stringent applications.

Electrical Raceway Systems in Cleanrooms Offer Flexibility 

United’s raceway systems provide a hollow channel with a removable cover that can be used as a service chase for electrical, cable and various other applications. The image to the left is a quick disconnect used for compressed air inside a modular cleanroom.

Free Standing Walls for Production Lines

Free Standing Partition Walls

Free standing partition walls can be installed in a variety of colors and configurations needed to separate production lines. Modular walls offer the separation you need and can be reconfigured as needs change.  Modular wall systems can be custom made according to your specifications for production lines, office partitions, office dividers and more.

Automated Cleanroom HVAC Control Systems

Automated Control System Panel

A control system is designed to control HEPA or ULPA FFUs (Fan filter Units) from an automated remote console or panel. Automated Control Systems (ACS) feature mounted controllers, CAT 5 cabling, and LED readout. ACS provides both global and individual fan speed on FFU modules.  Contact us for your custom cleanroom HVAC control system for one or multiple cleanrooms.


Contact Us for your Custom Cleanroom Design and Construction Today 

Cleanrooms by United is a trusted modular cleanroom manufacturer offering a range of flexible solutions. We design and build our modular cleanroom systems in compliance with ISO 16444-1 to meet regulatory requirements. Contact us for more information on all the functional and optional elements that can be added to customize your Cleanroom.  We will work with you on your Cleanroom Classification needs to design and build the right clean room for your industrial application.  We also offer full onsite cleanroom installation services. 

Contact us for more information regarding our portable clean room solutions for your design requirement needs or request a quote for exact pricing details today.