Purifiers vs. Filters

CO2 Filter – Remove non-volatile organic residue (NVOR)

CO2 Purifier – Remove volatile organic residue (VOR), hydrocarbons (VOC), and other contaminants.

Filter Purifier Train – A combination of filters and purifiers in-line to provide multi-layer filtering and purification.  A train can consist of a pre-filter or a pre-filter and post-filter e.g.:

Examples of Filter Purifier Trains

Good – Purifier

Better – Pre-Filter then Purifier

Best – Pre-Filter  then Purifier then Post Filter