| Product | What Can Happen |
| 🍶 Vinegar | Creates toxic gas |
| 🪟 Glass/Toilet Cleaners (with ammonia) | Releases harmful fumes |
| 🧴 Alcohol | Can make chloroform (very harmful) |
| 🧪 Hydrogen Peroxide | Forms strong, corrosive acid |
| 🧯 Drain Cleaners | Risk of explosion or poison gas |
Singapore