Commercial grade: Benjamin Moore's Eco Spec Waterborne Zero VOC primer, product code N372-00
Premium grade: Benjamin Moore's NATURA Zero VOC primer, product code 511-00.
Both primers are zero VOC, but the Eco-Spec is low odor, while the Natura is zero odor.
Most manufacturers have zero VOC paints and primers when it is untinted. When you add Glycol colorant to make your desired color, the zero VOC goes out the window. Benjamin Moore is the only manufacturer which has the GENNEX colorant system which allows you to get the deepest, darkest, richest colors and still be zero VOC.
Hope this helps.
Vandi.