OpenAire™ (Stainless Steel)
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For exhaust filtration systems, laboratory applications, and other critical performance applications, the stainless steel version of the OpenAire™ filter system may be the answer. These filter systems hold from 1 to 128 CBR filters (25,600 cfm). Its one piece front cover is designed for use with the M98 gas (only) filter or the NATO CBR filter set.
This housing can be configured with the air inlet through the rear seal plate, as shown, or through the front cover. Standard and custom frames are available to create complete CBR filter systems.
A fully functional CBR Filter System includes the filter system described in this section along with CBR Filters.
To determine filter system size, use the following info based on your flow rate required and available dimensional constraints. Housings are available in 8 lengths. Choosing the longest length that meets your dimensional constraint will provide the lowest cost system.
Filter System Arrangement Filter System Dimension Flow Rate at 200 CFM Per Filter W x H W x H Depth (# of Filters) 1 2 3 4 5 6 7 8 1 x 1 36" x 36" 200 400 600 800 1000 1200 1400 1600 1 x 2 36" x 63" 400 800 1200 1600 2000 2400 2800 3200 1 x 3 36" x 90" 600 1200 1800 2400 3000 3600 4200 4800 1 x 4 36" x 117" 800 1600 2400 3200 4000 4800 5600 6400 2 x 1 63" x 36" 400 800 1200 1600 2000 2400 2800 3200 2 x 2 63" x 63" 800 1600 2400 3200 4000 4800 5600 6400 2 x 3 63" x 90" 1200 2400 3600 4800 6000 7200 8400 9600 2 x 4 63" x 117" 1600 3200 4800 6400 8000 9600 11200 12800 3 x 1 90" x 36" 600 1200 1800 2400 3000 3600 4200 4800 3 x 2 90" x 63" 1200 2400 3600 4800 6000 7200 8400 9600 3 x 3 90" x 90" 1800 3600 5400 7200 9000 10800 12600 14400 3 x 4 90" x 117" 2400 4800 7200 9600 12000 14400 16800 19200 4 x 1 117" x 36" 800 1600 2400 3200 4000 4800 5600 6400 4 x 2 117" x 63" 1600 3200 4800 6400 8000 9600 11200 12800 4 x 3 117" x 90" 2400 4800 7200 9600 12000 14400 16800 19200 4 x 4 117" x 117" 3200 6400 9600 12800 16000 19200 22400 25600
Filter System Arrangement Filter System Dimension Flow Rate at 200 CFM Per Filter W x H W x H Depth (# of Filters) 1 2 3 4 5 6 7 8 1 x 1 36" x 36" 200 400 600 800 1000 1200 1400 1600 1 x 2 36" x 63" 400 800 1200 1600 2000 2400 2800 3200 1 x 3 36" x 90" 600 1200 1800 2400 3000 3600 4200 4800 1 x 4 36" x 117" 800 1600 2400 3200 4000 4800 5600 6400 2 x 1 63" x 36" 400 800 1200 1600 2000 2400 2800 3200 2 x 2 63" x 63" 800 1600 2400 3200 4000 4800 5600 6400 2 x 3 63" x 90" 1200 2400 3600 4800 6000 7200 8400 9600 2 x 4 63" x 117" 1600 3200 4800 6400 8000 9600 11200 12800 3 x 1 90" x 36" 600 1200 1800 2400 3000 3600 4200 4800 3 x 2 90" x 63" 1200 2400 3600 4800 6000 7200 8400 9600 3 x 3 90" x 90" 1800 3600 5400 7200 9000 10800 12600 14400 3 x 4 90" x 117" 2400 4800 7200 9600 12000 14400 16800 19200 4 x 1 117" x 36" 800 1600 2400 3200 4000 4800 5600 6400 4 x 2 117" x 63" 1600 3200 4800 6400 8000 9600 11200 12800 4 x 3 117" x 90" 2400 4800 7200 9600 12000 14400 16800 19200 4 x 4 117" x 117" 3200 6400 9600 12800 16000 19200 22400 25600
Section view of CBR Filter Housing showing airflow path
Each filter has a rated flow capacity of 200 cfm (5.7 m3/min). It is manufactured in accordance with U.S. military specification MIL-F-51527.
As air passes through the gas adsorber, chemical warfare gases are removed through physical and chemical adsorption using a packed bed of granular carbon. This carbon bed has additional treatments for enhanced performance against certain gases and in presence of high relative humidity.
The gas adsorber has a flow resistance (pressure drop) of approximately 3.5 in. wg (872 Pa). During operation, the flow resistance of the gas adsorber does not increase. However, its weight will increase as water vapor is adsorbed. The initial (dry) weight of the gas adsorber is approximately 35 lbs (16.0 kg).
Parts
Index No. Description P/N Unit Qty Per Housing 1 
Nut, Filter Access Cover NW000159-00 EA 4 2 Cover, Filter Access NW000298-00 EA 1 3 Gasket, O-ring, Flange NW000163 EA 1 4 Stud, Filter Access Cover NW002689-00 EA 4 5 Grease, Gasket, O-Ring NW000986-00 EA As required 6 Thread Compound, Antiseize NW000987-00 EA As required
