ChloroKlean Knowledge Centre
Expert guides, step-by-step processes, and authoritative resources on chlorine dioxide, water treatment, and industrial disinfection from our technical specialists.
Guides & Resources
In-depth articles organised by topic, written and reviewed by our technical team.
Compliance & Regulation
Understanding BPR authorisation, product type classifications (PT2–PT12), and how to verify UK regulatory compliance for biocidal products.
BPR Compliant Disinfectant
A BPR-compliant disinfectant holds GB BPR authorisation for its intended use. How to verify PT2, PT4, PT5, or PT11 compliance in the UK.
PT2 Disinfectant
PT2 disinfectants are BPR-authorised biocides for pools, spas, healthcare, and public buildings. How to choose compliant PT2 products in the UK.
Related deep dives
Water Treatment & Legionella Control
How chlorine dioxide prevents Legionella, removes biofilm, and treats cooling towers and building water systems to ACOP L8 and HSG274 standards.
Legionella Prevention in Water Systems
Chlorine dioxide achieves 4-log Legionella reduction at <0.5 ppm and penetrates biofilm thermal treatment cannot reach. ACOP L8 compliant. ChloroKlean.
Cooling Tower Water Treatment
Chlorine dioxide controls Legionella and removes biofilm from cooling tower fill packs with minimal gassing off. HSG274 Part 1 compliant. ChloroKlean.
Product & Safety Guides
Product specifications, safe handling procedures, and application guides for ChloroKlean chlorine dioxide products across all BPR product types.
Chlorine Dioxide UK Supplier
ChloroKlean is a UK chlorine dioxide supplier with BPR authorisation across PT2, PT4, PT5, and PT11. 500ml to 1000L IBC packs with 48-hour UK delivery.
ChloroKlean Plus L20
ChloroKlean Plus L20 is a regenerative chlorine dioxide with BPR authorisation across PT2, PT4, PT5, PT11. Sustained ClO₂ for biofilm and Legionella control.
Food Safe Disinfectant
PT4-authorised chlorine dioxide is food-safe with zero residue. Effective against Listeria, Salmonella, and E. coli. HACCP-compatible. ChloroKlean.
Pool & Spa Disinfection
Chlorine dioxide for swimming pools, hot tubs, and spas — zero chloramines, biofilm penetration, and Legionella prevention at operating temperatures.
Spa Water Disinfection
Chlorine dioxide achieves 99.9% Legionella kill rate at <0.5 ppm in spas with zero chloramines or THMs. ClO₂ vs bromine and chlorine compared.
Chlorine Dioxide for Swimming Pools
Chlorine dioxide eliminates pool chloramines, kills Cryptosporidium, and removes pipework biofilm. Why commercial pools switch to ClO₂.
Chlorine Dioxide for Hot Tubs
Chlorine dioxide maintains full efficacy at 37–40°C where bromine and chlorine degrade. ClO₂ removes jet biofilm and prevents Legionella in hot tubs.
Disinfectant Comparisons
Evidence-based comparisons of chlorine dioxide against bromine, chlorine, and other biocides — covering efficacy, by-products, pH range, and BPR status.
Chlorine Dioxide vs Bromine
Chlorine dioxide penetrates biofilm and produces zero brominated by-products; bromine cannot. ClO₂ vs bromine compared for efficacy, safety, and BPR status.
Chlorine Dioxide vs Chlorine
Chlorine dioxide produces zero THMs, zero chloramines, and works at pH 4–10. Chlorine does not. Side-by-side ClO₂ vs chlorine comparison.