What must be utilized according to EPA regulations when recovering refrigerants?

The requirement to use only approved recovery equipment when recovering refrigerants is critical for compliance with EPA regulations. This regulation ensures that the equipment meets specific safety and effectiveness standards designed to minimize the release of refrigerants into the atmosphere, which can contribute to ozone depletion and climate change.

Approved recovery equipment is designed to efficiently remove refrigerants from systems while preventing contamination and ensuring that the refrigerant is captured and stored safely. Using such equipment is necessary to protect both the environment and public health. It also reflects adherence to best practices in the HVACR industry, promoting proper handling and disposal of refrigerants.

The other options do not meet the stringent safety and environmental requirements set forth by the EPA. Standard household tools, improvised tools, or outdated methods lack the necessary specifications and can lead to improper recovery and potential refrigerant leakage, which is prohibited by federal laws aimed at protecting the environment.