Microbial Resistance Listing Program

The GREENGUARD Environmental Institute lists specific products that have been found to be microbially resistant when tested according to a test method following the guidelines of ASTM D 6329 and analyzed with a quantitative scale. This analytical approach was developed following an extensive method development study. Please see Final Report On The GREENGUARD Pilot Study Of Microbial Resistance (Phases 1 And 2) for additional information.

GREENGUARD's Microbial Resistance Listing provides products that have been shown to resist the growth of mold when subjected to adverse environmental conditions. Products listed have been voluntarily submitted for testing by manufacturers. Products listed as “microbial resistant” may or may not have been tested for their chemical / volatile organic compound (VOC) emissions. Participation in the GREENGUARD Microbial Resistance Listing does not entitle products to be part of  the GREENGUARD Certification programs. The GREENGUARD Environmental Institute lists products for one year upon successful completion of this test, and products must be annually re-tested to retain their Listing.  

While no products are mold proof, and it is uncertain that any material will resist mold or mildew indefinitely, information on the microbial resistance of new products helps those who purchase building products make informed decisions.