A cooling and heating system's SEER (Seasonal Energy Effectiveness Proportion) ranking suggests its energy efficiency level throughout air conditioning

https://andymerv710.trexgame.net/the-function-of-a-c-in-indoor-air-quality-breathing-fresh-air-at-home

A cooling and heating system's SEER (Seasonal Energy Effectiveness Proportion) rating indicates its power efficiency degree throughout cooling down operation.