Disinfectant

Definition

A disinfectant is a chemical agent used to eliminate or reduce harmful microorganisms on inanimate objects and surfaces. It is crucial in preventing the spread of infections.

5 Must Know Facts For Your Next Test

1. Disinfectants are not effective against bacterial spores.
2. Common active ingredients in disinfectants include alcohols, chlorine compounds, and quaternary ammonium compounds.
3. Disinfectants are categorized based on their spectrum of activity: high-level, intermediate-level, and low-level disinfectants.
4. The effectiveness of a disinfectant can be influenced by factors such as contact time, concentration, temperature, and presence of organic matter.
5. Disinfectants differ from antiseptics, which are used on living tissues.

Review Questions

• What factors can influence the effectiveness of a disinfectant?
• Name three common active ingredients found in disinfectants.
• How do disinfectants differ from antiseptics?

Related terms

Antiseptic: A chemical agent that inhibits or destroys microorganisms on living tissue.

Sterilization: A process that destroys all forms of microbial life, including spores.

Sanitization: The process of reducing microbial contamination to safe levels according to public health standards.