How is this filter different from the SmokeStop© PRO range?

The SMOKESTOP‚Ñ¢ PRO Series filters contain highly porous carbon granules, a material that is extremely effective in removing gaseous pollutants, such as smoke odors and formaldehydes. The CARBON+ filter complements the SMOKESTOP‚Ñ¢ main filter or the particle filter to remove even more chemicals, gases and odors from your indoor air.