It is also important to know that there is sometimes a difference in "low VOC" level for water-borne coatings (those that can be diluted with water) and solvent-borne coatings (those that are dilutable with organic solvents). As a general rule, the "low VOC" level for water-borne paints is much lower than that for solvent-borne paints.
Simply put, going for a "low VOC" water-based paint is usually less smelly than a paint that is dilutatable with a solvent. However, as mentioned previously, there is "low VOC" and "virtually zero VOC".
*Note, the reason we can't say "VOC free" is because even water could contain some very small (trace) amounts of VOCs, and paints as they are processed may have been in contact with substances with VOCs. Even if these VOCs are removed during later stages of production there still might be trace amounts in the final paint. The up shot is that across Europe the paint industry agreed that a "Zero VOC" claim couldn't be used to promote products. You can read more about that on the British Coatings Federation website.
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