Power tools can create noise levels in excess of 100dBs. At that level, you could experience hearing damage in just 15 minutes. Protecting your ears in this environment is necessary, but that doesn't mean you have to be totally shut off from the rest of the world. You still need to be able to hear conversations and environmental sounds to stay safe. Earasers provide a comfortable, reusable, and renewable solution that provides hearing protection while maintaining your ability to hear.