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. 2021 Dec 3;11(12):1334. doi: 10.3390/life11121334

Table 2.

General Mechanisms of Disinfecting Agents and Their Impacts on Human Health.

Agent Mechanism of Action Benefits Drawbacks Adverse Effects Reference
Ethanol (>60%) Denaturation of proteins Recommended by U.S. FDA against SARS-CoV-2; economical and easy to handle Disagreeable odor, dryness of skin, possibility of unwanted toxicity in children Skin: Itching, allergy, dermatitis
Liver: Hypocalcemia, hypokalemia, hypomagnesemia, myoglobinuria
Others: Vomiting, drowsiness, respiratory arrest, keto acidosis, arrhythmia, cardiac arrest
[42,80,91]
Isopropanol (>70%) Denaturation of proteins Recommended by U.S. FDA against SARS-CoV-2; economical and easy to handle Unpleasant odor, dryness of skin, possibility of unwanted toxicity in children Skin: Rash, itching, irritation, allergy
Others: Myoglobinuria, gastritis, respiratory depression
[42,80,91]
Quaternary ammonium compounds Enzymatic inactivation; Degradation of cellular proteins Minimal human toxicity, better tolerability, no bad odor Less effective in low pH and in the presence of organic substances Mild irritation [91,92]
Hydrogen peroxide Free-radical induced oxidation of cellular components Relatively less toxic, inexpensive, easy to use Corrosive Mild irritation in skin and mucous membrane, vomiting, air embolism [80,91,93]
Iodine compounds Degradation of cellular proteins, fatty acids, and nucleotides Non-corrosive, ease of use Unpleasant odor, staining, irritation Rash, itching, local swelling [91,92]
Chlorine compounds Halogenation/oxidation of cellular proteins Effective in low concentration, low-cost Corrosive, formation of toxic by-products, irritation Nausea, coughing, shortness of breath, irritation of mucous membrane, stimulation of the upper airways [91,94]