Final answer:
The proper distance for a facial steamer from the client's face is 10-12 inches, which balances efficacy and safety.
Step-by-step explanation:
When using a facial steamer, it's important to ensure that it's positioned at a safe and effective distance from the client's face. The correct answer is b) 10-12 inches. This distance allows the steam to comfortably reach the face without causing overheating or discomfort. Placing the steamer too close can result in burns or excessive skin irritation, while placing it too far away can reduce the effectiveness of the treatment. Always adjust the steamer according to the client's comfort and follow the manufacturer's guidelines.