Some situations require a volume reduction that is more than what Loop products can provide. Such as situations involving firearms, fireworks, standing next to a helicopter or airplane. In those cases, stronger hearing protection is required. Our earplugs are also not suitable for swimming as exposure to water may damage the internal components and we can't guarantee the seal will keep all water out.Some states may prohibit the use of devices such as Loop while driving.  Check your applicable driving and traffic laws before wearing while driving. In the event that you are using Loop to address a noise issue in your workplace, Loop may or may not sufficiently reduce noise levels under all conditions to satisfy workplace requirements of the Occupational Health and Safety Administration or the Environmental Protection Agency.