What is the appropriate bleach to water solution for decontaminating equipment or Tyvek suits?

What is the appropriate bleach to water solution for decontaminating equipment or Tyvek suits?

• A. 1:100
• B. 1:10
• C. 10:1
• D. 1:1

Answer: (B)

Disinfection strength matters: you want enough active chlorine to inactivate contaminants on equipment without harming the material. A diluted household bleach solution of one part bleach to ten parts water is the standard for decontaminating equipment like Tyvek suits. Using bleach at typical household strength (about 5–6% sodium hypochlorite) this dilution yields roughly 0.5–0.6% NaOCl, which is effective for surface disinfection while remaining gentler on fabrics than a much stronger mix. Dilutions that are too weak won’t reliably kill pathogens, while overly concentrated mixes can degrade the suit and pose additional hazards. Apply the solution so surfaces stay wet for several minutes, then rinse with clean water.

Disinfection strength matters: you want enough active chlorine to inactivate contaminants on equipment without harming the material. A diluted household bleach solution of one part bleach to ten parts water is the standard for decontaminating equipment like Tyvek suits. Using bleach at typical household strength (about 5–6% sodium hypochlorite) this dilution yields roughly 0.5–0.6% NaOCl, which is effective for surface disinfection while remaining gentler on fabrics than a much stronger mix. Dilutions that are too weak won’t reliably kill pathogens, while overly concentrated mixes can degrade the suit and pose additional hazards. Apply the solution so surfaces stay wet for several minutes, then rinse with clean water.