Study: Infant sound machines damage hearing

A warning is out for parents using noise machines to help their babies sleep.{} A new study says some of them may be too loud, increasing an infant's risk for hearing loss.{}

Researchers say some noise machines exceed safe noise levels for adults, let alone infants.{} The study did not{}identify any specific models.

The authors recommended placing the machines as far away as possible from the infant, and that they only be played{}for a short time at low volume.

The study is published in the journal Pediatrics.