Does polyurethane foam release acrolein and acetaldehyde?
Polyurethane foam can form VOCs such as formaldehyde, acetaldehyde, and acrolein as it oxidizes. Heat and foam chemistry affect how much is released.
Where polyurethane foam shows up
Polyurethane foam is used in many mattresses, cushions, couches, car seats, and padded furniture. As foam ages, oxygen and heat can change the foam chemistry. That process can create volatile organic compounds, also called VOCs.
What the research says
A 2026 study in Polymers tested flexible polyurethane foams under heated aging conditions from 65 to 155 C. Researchers measured VOCs from oxidation, including formaldehyde, acetaldehyde, and acrolein.
Foam formula mattered. Higher-index foams had faster soft-segment degradation. During long-term aging at 65 C, high-index foams had 3x higher acetaldehyde emissions. Formaldehyde and acrolein also formed, but the study focused on controlled lab aging rather than normal room-use exposure.
What to do at home
Ventilate rooms with new foam furniture. Keep foam away from heat and direct sun when possible. For soft home goods, choose wool, organic cotton, linen, wood, or other materials that do not rely on polyurethane foam padding.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| A Kinetic Study of the Autoxidative Formation of VOCs, Including Formaldehyde, Acetaldehyde and Acrolein from Polyurethane Soft Foams. | Polymers (Basel) | 2026 |
What to use instead
Browse wool home textiles as foam-free soft goods. For mattresses and couches, check the full construction and look for foam-free materials when possible.
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