Laminar Flow Enclosure

- Free Standing Enclosure Frames for Nexus® Optical Tables
- HEPA Filters and Enclosure Frame Create a Clean Environment
- Laminar Flow from HEPA Filter Units
LFE1220-US
Wraparound Laminar Flow Enclosure
LFE1220W-US
Walkway Laminar Flow Enclosure

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Rendering of Wraparound Laminar Flow Enclosure with a Nexus Optical Table
Features
- Free Standing Enclosure Frames
- Wrapround Version Encloses Table Surface
- Walkway Version Provides Space to Walk Around the Optical Table
- Designed to Fit a 1.2 m x 2.0 m (4' x 6') Nexus® Optical Table
- HEPA Fan Filter Units (FFU) Create a Clean Environment
- Air Quality Monitor (AQM) Continuously Monitors the Enclosure's Air Quality
Thorlabs' Laminar Flow Enclosures are designed to create a clean environment around 1.2 m x 2.0 m (4' x 6') Nexus optical tables by providing an enclosed air volume and filtration system to help minimize contamination. Two varieties of enclosures are available: a wraparound enclosure that minimizes both installation space and the enclosed volume, and a walkway enclosure with a larger perimeter that allows the user to walk around the optical table inside the enclosure. Both systems incorporate an enclosure frame; soft wall transparent curtain sides; an enclosed ceiling; top-mounted HEPA Fan Filter Units (FFU); and an Air Quality Monitor (AQM) that continuously monitors the quality of the air inside the enclosure. The enclosure frames do not touch the enclosed optical tables in order to avoid the transmission of vibrations from the frame to the table.

Laminar Flow Enclosures are
designed in our UK office.
Interested in Custom Capabilities?
Thorlabs is in the process of expanding our offering of Laminar Flow Systems and accessories. If you are interested in features that you don't see here, please contact us to discuss custom requests.
Each enclosure frame is composed of rails that are compatible with our 50 mm & 75 mm construction rail accessories, including T-nuts and screws, mounting brackets and feet, rail joiners, and channel inserts. An LED light strip on the interior of the structure helps illuminate the optical table. Additionally, the wraparound enclosure includes a curtain bar with brackets that can be attached to the front of the enclosure, which allows the transparent curtain walls to be moved out of the way when working inside the enclosure.
Please note that these enclosures require assembly, a manual process that requires four people to work on at least one of the assembly steps. Each fully assembled enclosure is designed to enclose a Nexus optical table. Tables are not included and must be purchased separately. To view a list of compatible Nexus optical tables, please see the Compatible Tables tab. For full assembly instructions, please view the manual by clicking on the red docs icon () below.
An LED light strip is included with the enclosures. If additional light is needed, the PSY240E LED light strip can be used. It is a 850 mm (33.46") long LED light strip that comes with a 4.3 m extension cord for compatibility with these enclosures.
Compatible Nexus Optical Tables | ||||
---|---|---|---|---|
Item # | Dimensions | Mounting Holes | Additional Features | |
T46H | 4' x 6' x 8.3" | 1/4"-20 | - | |
T46V | 4' x 6' x 8.3" | 1/4"-20 | Sealed Holes | |
T46J | 4' x 6' x 12.2" | 1/4"-20 | - | |
T46W | 4' x 6' x 12.2" | 1/4"-20 | Sealed Holes | |
T46HHa | 4' x 6' x 8.3" | 1/4"-20 | Two Through Ports | |
T46K | 4' x 6' x 18.1" | 1/4"-20 | - | |
T46X | 4' x 6' x 18.1" | 1/4"-20 | Sealed Holes | |
T1220C | 1.2 m x 2.0 m x 210 mm | M6 x 1.0 | - | |
T1220Pb | 1.2 m x 2.0 m x 210 mm | M6 x 1.0 | Sealed Holes | |
T1220D | 1.2 m x 2.0 m x 310 mm | M6 x 1.0 | - | |
T1220CH | 1.2 m x 2.0 m x 210 mm | M6 x 1.0 | Two Through Ports | |
T1220E | 1.2 m x 2.0 m x 460 mm | M6 x 1.0 | - | |
T1220R | 1.2 m x 2.0 m x 460 mm | M6 x 1.0 | Sealed Holes | |
T1220Q | 1.2 m x 2.0 m x 310 mm | M6 x 1.0 | Sealed Holes |
Posted Comments: | |
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General Specifications | |||
---|---|---|---|
Maximum Additional Loada,b | 400 kg | ||
Maximum Load per Construction Rail |
100 kg | ||
Total Weight of Enclosure | 150 kg | ||
Foot Height Adjustment | ±11.5 mm | ||
HEPA Filter Efficiency | 99.95% | ||
Internal Dimensions | 1230 mm x 2100 mm x 1132.5 mmc | ||
Frame Dimensionsd | 2.20 m x 1.33 m x 2.36 m | ||
Crate Dimensions | 2.29 m x 0.75 m x 0.79 m |
- Wraparound Design Encloses the Surface of a Table
- Designed to Fit a 1.2 m x 2.0 m (4' x 6') Nexus Optical Table
- HEPA Fan Filter Unit (FFU) Creates a Clean Environment
- Air Quality Monitor (AQM) Continuously Monitors the Enclosure's Air Quality
The Laminar Flow Enclosures provide an enclosed air volume and filtration system to help minimize contamination for setups built on our Nexus optical tables. The system is enclosed by a frame; soft wall transparent curtain sides; a ceiling; and a top-mounted HEPA Fan Filter Unit (FFU). The enclosure frame does not touch the table in order to avoid the transmission of vibrations from the frame to the table. An Air Quality Monitor (AQM) is included and continuously monitors the quality of the air inside the enclosure. An LED light strip is also included with the enclosures. If additional light is needed, the PSY240E can be used (sold below).
The HEPA filter units shipped with the enclosures require a voltage of 115 V (-US enclosures) or 230 V (-EU and -UK enclosures). Please note that cables are not provided with the HEPA filter. Assembly and wiring of the filter should be carried out as per local regulations. For more information, please refer to the HEPA manual shipped with each enclosure.

General Specifications | |||
---|---|---|---|
Maximum Additional Loada,b,c | 300 kg | ||
Maximum Load per Construction Rail |
100 kg | ||
Total Weight of Enclosure | 270 kg | ||
Foot Height Adjustment | -0, +10 mm | ||
HEPA Filter Efficiency | 99.95% | ||
Internal Dimensions | 2100 mm x 3140 mm x 1920 mmd | ||
Frame Dimensionse | 3.29 m x 2.25 m x 2.40 m | ||
Crate Dimensions | 3.25 m x 0.90 m x 0.85 m |
- Walkway Design Provides Space to Walk Around the Optical Table
- Designed to Fit a 1.2 m x 2.0 m (4' x 6') Nexus Optical Table
- Two HEPA Fan Filter Units (FFU) Create a Clean Environment
- Air Quality Monitor (AQM) Continuously Monitors the Enclosure's Air Quality
The Walkway Laminar Flow Enclosures provide an enclosed air volume and filtration system to help minimize contamination for setups built around our Nexus optical tables. While these enclosures can be used with any table that fits inside, they are specifically designed to work with a 1.2 m x 2.0 m (4' x 6') Nexus Optical Table: the enclosure will encompass 625 mm and 525 mm of walkway space on the short and long sides, respectively, of a 1.2 m x 2.0 m table (see drawing to the lower left).
The system is enclosed by a frame; soft wall transparent curtain sides; a ceiling; and two top-mounted HEPA Fan Filter Units (FFU). The enclosure frame does not touch the table in order to avoid the transmission of vibrations from the frame to the table. Castors are located at bottom of each leg of the enclosure and provide freedom of movement. Lowering the feet of the enclosure allows it to remain stationary. An Air Quality Monitor (AQM) is included and continuously monitors the quality of the air inside the enclosure. An LED light strip is also included with the enclosures. If additional light is needed, the PSY240E can be used (sold below).
The HEPA filter units shipped with the enclosures require a voltage of 115 V (-US enclosures) or 230 V (-EU and -UK enclosures). Please note that cables are not provided with the HEPA filter. Assembly and wiring of the filter should be carried out as per local regulations. For more information, please refer to the HEPA manual shipped with each enclosure.

Specifications | |
---|---|
Brightness | 1530 Lumens |
# of LEDs | 51 |
Powera | 15.3 W |
Voltage | 12 VDC (Power Supply Included) |
Dimensions | 850 mm x 17.4 mm x 8.2 mmb (33.46" x 0.69" x 0.32") |
- 850 mm (33.46") Long
- 4.3 m Extension Cable
- Sturdy Aluminum Base Resists Warping
- Frosted Plastic Cover Ensures Even Spread of Light
- Shipped with 3 Spring Clips, 3 T-Nuts, 3 M6 Screws, 4.3 m Extension Cable, and a Power Supply
This rigid LED light strip is 850 mm (33.46") long, comes with a 4.3 m extension cable, and is held in place by three spring clips. If more light is needed in one of our laminar flow enclosures above, a PSY240E can be used in addition to the LED light strip included with the enclosures. It can also be used with racks or shelves, such as our Free-Standing Overhead Shelf or our Nexus Table Frame Overhead Shelves. The light strip can also be mounted over a bench for general laboratory use.