Should I Leave My Air Purifier On All the Time?
Leaving an air purifier on all the time makes the most sense when you spend many hours in the room and deal with allergies, pets, wildfire smoke, or high outdoor pollution. It is less sensible when the room is often empty, the unit is noisy, or operating costs strain your budget. The right choice depends on occupancy, unit type, filter expenses, and whether the device has an automatic or energy-saving mode.