If you use 70% isopropyl alcohol for cleaning and disinfecting, it's an excellent choice—bactericidal and virucidal against flu, COVID, and more. But misuse can be dangerous. Here are the 6 mistakes to avoid:
70% alcohol is a versatile powerhouse for surfaces, especially now. It eliminates viruses on contact. Yet, safety first—heed these expert warnings.
This combination is extremely hazardous. Ethanol and isopropyl in 70% alcohol react with bleach to produce chloroform—a toxic gas causing central nervous system damage, liver/kidney issues, skin/lung/eye irritation, nausea, and dizziness. Always use separately.
Highly flammable, 70% alcohol ignites easily. Extinguish candles, avoid smoking, and steer clear of open flames or cigarettes during use. Safety is non-negotiable.
Its rapid evaporation releases potentially harmful vapors. Open windows and ensure good airflow when cleaning to prevent inhalation risks.
Ideal for countertops, toilets, laptops, and phones—destroying E. coli, flu, and COVID. But skip:
Varnished or painted surfaces: Ethanol dissolves finishes, damaging furniture and wood.
Delicate fabrics: Effective on stains like ink or grease on cotton, but avoid acetate, rayon, wool, silk, or synthetics.
Great for sterilizing tools like tweezers or small cuts, thanks to its antiseptic power. However, avoid large areas, serious wounds, sunburn, dry, or irritated skin—it can delay healing and cause irritation. Use sparingly on hands.
Poisonous if swallowed, even in small amounts. Store securely away from children; never transfer to unmarked containers to avoid accidental ingestion. Contact poison control if needed.
Buy pre-diluted 70% (or 90-91%) alcohol—don't dilute further, as effectiveness peaks at 60-90% for killing bacteria.

Available at pharmacies, supermarkets, or online retailers.
Share other tips or uses to avoid in the comments—we'd love to hear!