Which organization certifies the safety of pedicure chairs and hair dryers?

The correct choice is Underwriters Laboratories (UL), which is well-known for its role in certifying the safety of a wide variety of products, including electrical appliances and equipment used in personal care industries. UL conducts rigorous testing to ensure that products meet established safety standards and are free from hazards that could potentially harm consumers. Specifically for pedicure chairs and hair dryers, UL's certification signifies that they have been evaluated for electrical safety, fire hazards, and overall consumer safety performance.

While Intertek Testing Service and the National Standards Institute also engage in product safety and standards, UL is the more recognizable authority whose certifications are commonly referenced in the beauty and wellness industries. General Electric Corporation, on the other hand, is primarily a manufacturer of electrical products and is not a certifying organization. Thus, choosing Underwriters Laboratories aligns with the expectations for consumer safety regulations in the context of pedicure chairs and hair dryers.