The COVID-19 pandemic began to spread at the beginning of 2020 in the world and in Japan. which is expected to impact the air conditioning (AC) energy use (EU) in educational buildings when AC and natural ventilation are used together as a new regulation to decrease infectious disease transmission. Furthermore. this regulation of natural ventilation is expected to impact the AC EU whe... https://homehardware4ues.shop/product-category/anchors/