Final answer:
Refrigerant recovery equipment must meet EPA standards. Type I and Type II refrigeration systems must have a compressor.
Step-by-step explanation:
All refrigerant recovery equipment must meet the standards set by the Environmental Protection Agency (EPA) in order to ensure safe and efficient handling of refrigerants. These standards include requirements for equipment design, leak detection, recovery rates, and certification.
All Type I and Type II refrigeration systems are required to have a compressor as a key component. The compressor is responsible for compressing the refrigerant gas, increasing its pressure and temperature, which allows for heat exchange during the refrigeration cycle.