These filters are usually refillable and are further characterised by their combination or high adsorption capacity and low flow rate. In the case or extremely high concentrations or gases, it is also advisable to use stainless steel. It is important that separate filters are fitted in front or and behind the carbon filters.
Frame : Galvanised steel
Bonding : 2 component polyurethane
Carbon : M-carb generic activated carbon. S-carb specific impregnated carbon used for museums and archives

Specifications
Frame : Galvanised steel
Bonding : 2 component polyurethane
Carbon : M-carb generic activated carbon. S-carb specific impregnated carbon used for museums and archives
Gasket : Neopreen
Maximum temperature : 40°C
Maximum relative humidity : 70°

Installation
Ensure that no leakage can occur. (new gaskets can be supplied together with filters)
Ensure that the frame and the cabinet in which the new filter is to be fitted are cleaned first
Activated carbon pellets may be spilled either during installation or throughout the life span or the filter.
Ensure that these are removed before the system is turned on.
Maintain records or the filters installed; note the date, type and initial resistance.
It is important that separate filters are fitted in front or and behind the carbon filters.
A pre-filter is required to prevent the activated carbon filter from becoming clogged with dust particle and to avoid the possibility or activated carbon particles entering the airflow.
link:http://www.snylifilter.com