Our sound machines are made of ABS plastic, which has been deemed perfectly safe for consumer use. The smell you are experiencing is due to the newness of the machine, and it is typically gone in about a week. (You may experience it with our machines because they are built in the US, so they are relatively “newer” than products built overseas.)
We suggest letting your machine run in an open-air environment (such as a garage or a room with an open window). Opening the vents to full capacity and setting the unit on high will help speed up the process of eliminating the smell.
Our products have been in use for over 50 years, including in the rooms of all of our own children, and we firmly believe in the safety of our products. We only want what is best for our customers and their families. If the smell bothers you too much or does not go away, we will certainly exchange the product for you - just contact our customer service team and we’d be happy to help.