Rosenbauer's CleanAir system developed in conjunction with the University of Minnesota. CleanAir uses two types of filters to trap particulate such as a soot and an activated charcoal to change the chemistry of volatile organic compounds into a benign gas.
Removing particulates: Merv 15 is effective to 0.3 microns at 75%. In comparison to HEPA filters which are Merv 17-20 filters, however the science behind air filters is complex. HEPA filters are used in homes and hospitals for the purpose of eliminating disease spreading organisms which are effective up to 99% on microns 0.3.
HEPA filters are ineffective on gaseous contaminants. Our CleanAir system includes the second activated charcoal filter because firefighters who've been on-scene and those who definitely were involved in active fire attack off-gas. Known carcinogens which are common on the fire ground.
University of Minnesota | Particle Calibration Laboratory | April 2019
The Particulate Calibration Laboratory of the University of Minnesota has released test results of the filter used in the Rosenbauer CleanAir Scrubber introduced at the 2019 FDIC. The test was conducted per ASHRAE Standard 145.2-2016 in a test facility with a controlled air flow system where a representative VOC (volatile organic compound) was injected to determine the overall effectiveness of the filter in removing VOC’s.
The test showed that the filter was effective in removing the VOC with an initial efficiency of 85%. We believe this a significant step forward in our Clean Cab initiative.