Our standard anaerobic chamber with HEPA filtration.

Our standard anaerobic chamber with HEPA filtration.

Options and Specs

The Whitley A155 HEPA Workstation provides the ability to operate a variety of laboratory equipment or perform specialist tasks in a strictly controlled anaerobic environment. This workstation has a capacity of 1,900 litres; two airlocks; and two removable fronts.

The huge capacity of this workstation means that it can accommodate a variety of laboratory equipment, eg cell sorters, colony pikers, high throughput bio-reactors, microscopes and spiral platers such as the Workstation WASP Touch.

The A155 HEPA is equipped with the Whitley Internal HEPA Filtration System, which reduces particle counts inside the chamber to levels exceeding the requirements of ISO 14644 Class 3.

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A color, touch-screen control panel for ease of use and for visual display of parameters such as temperature, humidity, and airlock cycle status
Two deep airlocks, one at either end of the workstation, that can be operated independently and take only 60 seconds to run a cycle. Each airlock can accommodate 10 x 500ml Duran bottles
Two removable fronts to enable the transfer of larger batches of samples or pieces of equipment for use inside the chamber
Patented oval ports enable you to work comfortably, gloved or bare handed. Each port includes an isolator switch so that you can use one port at a time, if required. The fact that there are two sets of ports means that two researchers can work in the chamber side-by-side
Two new options are available: a rotating turntable (up to 3 per shelf) to hold up to 80 x 90mm Petri dishes; and the movable platform to facilitate the movement of heavy items of equipment inside the chamber.
Double internal power socket, 2 Amp max
Shelves with optional storage trays


HEPA filtration for
sample protection
The chamber atmosphere passes through the filter every four seconds, quickly creating and maintaining a particle-free environment (tested down to 0.3μm, exceeding ISO 14644 Class 3, as referenced in the Cell Tissue Culture Directive, or Class 1 of US Federal Standard 209E). Clean-up time after a period of activity is considerably less than the 20 minutes allowed by the standard.

Our custom-designed trolley frees up bench space and allows the chamber to be moved. The trolleys are built with high quality tubular steel and smooth rolling lockable wheels. They offer a sturdy and stable frame to support your use of our anaerobic and microaerophilic workstations.
See Details

Front Loading 9cm Letterbox
A single sample entry system is ideal for quickly introducing culture flasks, Petri dishes and other small items

Spare Cable Gland
Used to accommodate a power or data cable without affecting the chamber conditions

Data Logging
Access temperature, humidity, chamber pressure and anaerobic conditions. Stores up to 30 days of system information, accessed via USB port.

Anaerobic Conditions
Monitoring System
Monitors and displays real time oxygen levels within the workstation. Depending on the percentage of oxygen present, the chamber/airlock symbol on the touch screen will read green, yellow or red. The system is complete with oxygen sensor and a special software package. The oxygen sensor is located inside the and quickly calibrated via the touch screen

Integrated Touch
Screen Computer
For easy data entry the touch screen is conveniently mounted inside the chamber for ergonomic use and connects to an external computer

The Whitley LED Spotlight option provides directional lighting to assist in the early identification of sample growth or other specimen examination.

Electronic gas
leak detector
The Electronic Gas Leak Detector provides an audible tick and flashing LED when exposed to H2 gas at 50 ppm or more.

Conventional Porthole
These sleeved ports provide considerable freedom of movement and comfort when working in the chamber for long periods.

Vacuum Take-off
A Vacuum Take-off Port provides a method of aspirating used liquid media from inside the workstation in safety and without the risk of spillage or contamination.


Capacity (Liters) 1900
HEPA Fitted as standard
Gas Supply ANO2/N2
Airlock Cycle Time 60 seconds
Airlock capacity: 16 Liters
Dimensions (w/d/h in mm): 2875x1056x993
Weight (lbs/kg): 771/350
Temperature range 4ºC above ambient up to 45ºC
Electrical 110 V, 50-60 Hz

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Motorized Trolley