Ask Who Cleans AC Filters — Dirty Filters Hide in Summer

Ask Who Cleans AC Filters sounds like a micro-optimization until you are outside Wuhou Shrine when tour groups outnumber the shade.

A colleague from Brazil once forgot to screenshot the QR code and became that person at the gate. The fix took less time than telling the story.

Try this once: write the rule on your phone lock screen for three days. If it survives, it is yours.

Your mileage may vary.