Many state air quality boards have set the VOC (volatile organic compound) content of indoor house paint and stain to be 50 grams/liter or lower as a minimum requirement.
VOCs are carcinogenic, can cause headaches, dizziness and respiratory problems, and are linked to pollution and smog. Even after the new paint smell goes away, it will take several years for all the VOCs to vaporize and completely disppear. It is evident that using paints/stains with minimal amounts of VOCs or none at all would be preferable.
However, zero VOC paint/stains are not yet commonly used for two reasons. First, the earlier low or zero VOCs paints lacked color section, performance and durability and were more expensive. Manufacturers have vastly improved the zero VOC paints/stains but it is taking time to gain wide acceptance. Second, painting contractors typically use the paints/stains they are most accustomed to, as they are already familiar with its application and drying time. This not only makes their job simpler and easier, but also more effective.
When you hire a painter, insist on using zero VOC paints/stains. If you do the painting yourself, be sure to check the labels for level of VOC content.
Zero VOC paints/stains may be still a little more expensive and may take a little longer to do the job, but the health of you and your family is priceless.