Is it safe to paint a nursery while pregnant if the windows are open?

What's actually in it

Regular interior paint off-gasses VOCs: benzene, toluene, xylene, and formaldehyde. That new-paint smell is the chemicals leaving the wall and filling the room. A paint job can keep off-gassing for weeks, not hours. Opening a window pulls fresh air across the room but doesn't clear the fumes from the paint itself.

Even zero-VOC paint still uses solvents in the tint base. And pregnant women breathe about 40% more air per minute than non-pregnant adults, so inhaled chemicals reach the bloodstream faster.

What the research says

A 2026 study in J Hazard Mater exposed pregnant mice to indoor-level VOCs and looked at the offspring. The babies had weaker synaptic plasticity and worse memory performance. The mechanism was a disruption of retinol metabolism in the brain. Retinol is vitamin A, and the brain needs it during fetal development to wire up correctly.

That's an animal study, but it lines up with human data. The chemicals in paint are the same ones that show up in cord blood and amniotic fluid when a pregnant woman paints or renovates.

An open window reduces the peak level in the room. It doesn't take the chemicals out of the mother's body once she's breathed them in. The safest call is to have someone else paint the nursery and wait at least a few weeks before the baby or the pregnant parent spends time in the room.