[SKB_Hamsters]

From the listing I cannot be certain if it has formaldehyde or not. However been doing a bit of research online usually companies don’t state formaldehyde free as formaldehyde are a naturally occurring organic compound in wood so all wood will have a trace level amount of it. When it say no added formaldehyde it means none are added during the manufacturing process as a glue.

You could always reach out the the company they may be able to give you a definitive answer.

When I’m using wood for cage accessories I usually to stick to untreated kiln dried pine wood. And my cages are made using ikea wood as they don’t added formaldehyde to their products.