The Vehicle Clean Volume Discount works excellent for resolving mold issues in most vehicles. These products help when it comes to mold and musty smells in cars, boats, RVs, and campers. The BioCide 100 works to treat mold and viruses on hard non-porous surfaces, while the BioMatrix Vehicle Air uses HEPA filtration to remove mold spore fine-particulates from the air. With a discount volume purchase, we will also throw in 6 HEPA filtration refills. If you need any help ordering this or if you have questions, call us today at 678-971-4388.