👉 Idle fumes refer to the lingering, often unpleasant residues or byproducts that accumulate when machinery or engines are not actively running but remain in a state of partial operation or standby. These emissions can include unburned fuel, exhaust gases, and other chemical compounds that have been released into the air but are not fully dissipated. They can be particularly noticeable in industrial settings, garages, or any environment where machinery is left running intermittently, contributing to air pollution and posing health risks if inhaled over time.
