Arkansas Esthetician Practice Exam

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What type of machine uses UV light to kill bacteria in a dry setting?

Autoclave
Chemiclave
UV Light Sterilizer
Ozone Generator

The correct answer is: UV Light Sterilizer

The use of UV light for sterilization is particularly effective because UV light disrupts the DNA of bacteria, preventing them from replicating and effectively killing them. A UV light sterilizer is specifically designed to harness this property, making it an efficient method to disinfect tools and surfaces in a dry environment without the need for chemicals or moisture, which is essential in esthetic practices to maintain hygiene standards. An autoclave uses steam under pressure to sterilize equipment and is not reliant on UV light. A chemiclave similarly involves the use of chemical vapors for sterilization, which also requires additional steps that UV sterilization does not. An ozone generator produces ozone gas for sanitization; while it has its uses, it operates differently from a UV light sterilizer and can be impractical in some environments due to its odor and potential effects. Overall, the UV light sterilizer stands out for its direct method of utilizing light to achieve sterilization in a quick and effective manner.