BWL 2004 02.V6   70% Chemical low resistance plate filter
BWL 2010.25.V4   70% Chemical air scrubber
BWL 2005.01.V8   70% Chemical air scrubber
BWL 2008.06.V7   70% Chemical air scrubber

BWL 2006.14.V7   85% Chemical combi air scrubber

BWL 2013.08.V3   90% Chemical air scrubber

BWL 2008.09.V6   95% Chemical low resistance plate filter
BWL 2010.26.V4   95% Chemical air scrubber
BWL 2007.05.V7   95% Chemical air scrubber
BWL 2008.08.V6   95% Chemical air scrubber

BWL 2007.03.V8   70% Biological air scrubber
BWL 2009.21.V4   70% Biological air scrubber

BWL 2009.12.V4   85% Biological combi air scrubber
BWL 2007.02.V6   85% Biological combi air scrubber
BWL 2010.02.V6   85% Biological combi air scrubber