Question

q25. which of the following sterilizers uses a vacuum to remove air? gravity - displacement sterilizer dynamic - air - removal sterilizer dry heat sterilizer flash sterilizer

Explanation:

• Gravity - displacement sterilizer: It works based on the principle of gravity to displace air with steam, not vacuum.
• Dynamic - air - removal sterilizer: This type of sterilizer uses a vacuum pump to remove air from the sterilization chamber before introducing steam.
• Dry heat sterilizer: Relies on dry heat for sterilization, no vacuum - based air removal mechanism.
• Flash sterilizer: Usually a type of steam sterilizer (often gravity - displacement or fast - cycle) that may not use vacuum for air removal in the traditional sense as described for dynamic - air - removal sterilizers.

Answer:

Dynamic - air - removal sterilizer