Common hazardous ingredients
Ethylene glycol, methanol, isopropanol.
Highly toxic; harmful or fatal if ingested. Air pollutant.
Avoid using solution that contains methanol. Use in a well-ventilated area. Wear nitrile gloves.
Keep container tightly closed when not in use. Store in a secure place.
Best: Use up or give away. Rinse and recycle empty containers.
Second best: Take to a hazardous waste facility or collection event.
Third best: If connected to a city sewer system, flush small amounts that do not contain methanol down an inside drain (toilet best) with lots of water. Contact your local sewer agency to know what is an acceptable small amount for your wastewater treatment plant. Do not flush down a septic system.
Look for the least toxic product available or find recipes to make your own wiper fluid.