| Fluorine-Based Cleaning Agents (HCFC141b, HCFC-225, HFC) |
| Issues：Ozone layer depletion, Global warming, High running cost. 4N-Cleaner Solution：4N-Cleaner does not affect Ozone layer, does not cause global warming. No need to have waste-water treatment, less rinsing, and less running cost. |
| Chloride System (Methylene Chloride, Trichloroethylene, Tetrachloroethylene) |
| Issues：Issues: Toxic Air Contaminants, induce both cancer and non‑cancer serious health effects. VOC regulation. 4N-Cleaner Solution：4N-Cleaner contains NO harmful chemicals, NO toxic surfactants, NON-hazardous to health. |
| Hydrocarbon System (Isoparaffinic Hydrocarbons , n-paraffin C10-C13, Naphthenic) |
| Issues：Severe pulmonary injury, other health issues. VOC regulation. 4N-Cleaner Solution：4N-Cleaner contains NO VOC, NO harmful chemicals, NO toxic surfactants, NON-hazardous to health. |
| Cleaners With Surfactants (Alkaline With Sodium Hydroxide (NaOH), Neutral System, Acidic System) |
| Issues：Endocrine disrupting chemicals. Problems with corrosion, rusting, chlorine. 4N-Cleaner Solution：4N-Cleaner does not contain sodium hydroxide (NaOH), it contains NO Chlorine, will not cause corrosion. Instead, it is rust preventive. |
| Sodium Lauryl Sulfate and Sodium Laureth Sulfate |
| Issues：Nitrosamines formed when combine with other chemicals, induce deadly tumor growth in humans. 4N-Cleaner Solution：4N-Cleaner contains NO harmful chemicals, NON-hazardous to health. |