VOC Filters and Cassettes


VOC Filters and Cassettes are gas filters filled with chemical adsorbents/media. Here at Om Mas, we offer these filtration products designed for easy handling and replacements. These air clean machines are also available in various models to cater to different air treatment applications.

Particulate Filters

Pro-filters, high-efficiency filters, absolute filters, electrical filters.


A standard frame gas filter incorporated with chemical particulates, the chemifilter is used widely inside air treatment units for industrial applications and is suitable for air deodorisation and purifications in public buildings, hospitals, museums, archives, white/clean rooms, laboratory hoods, ships, hotels, restaurants and many more.


The AP12 and AP18 chemical filtration modules are rugged plastic housings that contain chemical filtration pallets to provide excellent performance with low-pressure drops. These modules minimise maintenance time and operational costs required. It is also available in 4 different sizes to suit all applications and is designed for easy handling and replacement. Our cassettes can be supplied in pre-filled, direct from our production facilities, or refilled through removal caps. The design of the system would determine which module one would require. Factors that are taken into consideration are:

  • Available space
  • Air-flow volumes
  • Type and concentration of contaminants
  • Desired medial life


  • Filter
 W1250  W2000  W2500
 Frame  Plastic  Plastic  Plastic
 Chemical Filter  Panels 23mm wide with chemical media  Panels 23mm wide with chemical media  Panels 23mm wide with chemical media
 Dimensions WxLxD (mm)  287 x 592 x 292  491 x 592 x 292  592 x 592 x 292
 Filtration Area (m2)  0.6  1  1.3
 Maximum Airflow (m3/h)  1700  2800  3400
 Dessing Airflow (m3/h)  1250  2000  2500
 Pressure Lost (Pa)  125  125  125


  • Chemical Media
 Alphablend   8A  This is our standard chemical media for this filter and consist of a blend of virgin activated carbon and Alphasorb 8, capable to remove a broad spectrum of malodorous and toxic compounds such as hydrogen sulphide, dimethyl sulphide, mercaptans, nitric oxide, formaldehyde and VOC’s among others.
 Alphasorb 8  Potassium permanganate impregnated activated alumina spheres for the removal of oxidative compounds such as formaldehyde, ethylene and mercaptans.
 Alphasorb 15  Caustic impregnated activated alumina spheres for the removal of chlorine and acid gases such as H2S.
 Alphasorb   60  Virgin activated carbon for general odours & VOC’s adsorption.
 Alphacarb N  Impregnated activated carbon for the removal of ammonia and amino.
 Alphacarb   HG  Impregnated activated carbon for mercury vapour’s removal.


 Available Geometries  AP-18 FS  AP-18  AP-12 FS  AP-12
 Dimensions (LxWxH)  mm  598 x 438 x 144  299 x 438 x 144  598 x 295 x 299  299 x 295 x 299
 Pallet Bed Depth  mm  25.4  25.4 76 76
 Weight  kg  3.4  2 2.9 1.8
 Delivery Unit  pcs.  1  2 1 1