For example, on sultry summer days, when indoor humidity rises above the comfort range, many people turn on air conditioners or dehumidifiers to help dry the air.
(indoor humidity; rises; ) (many people; turn on; air conditioners or dehumidifiers to help dry the air; T:on sultry summer days; T:when indoor humidity rises above the comfort range)
indoor humidity many people
rises turn on
air conditioners or dehumidifiers to help dry the air T:on sultry summer days T:when indoor humidity rises above the comfort range