The disinfectant concentrate DEXDA® Clean (Pro) for disinfection and biofilm removal in water-bearing systems is a 2-component chlorine dioxide solution and, after activation, contains the active ingredient chlorine dioxide, which is approved according to the current Drinking Water Ordinance (TrinkwV). DEXDA® Clean (Pro) is a highly effective and broad-spectrum disinfectant. It has a bactericidal, virucidal, algicidal, sporicidal effect and, depending on the concentration, breaks down biofilms in the short and long term.

Challenge of water hygiene

Depending on the application, fluid (water)-carrying systems must be cleaned or disinfected at regular intervals, otherwise microorganisms will multiply and biofilm will form. Biofilm formation is influenced by several factors: bioavailable nutrients for microorganisms, surface properties of water-contacting materials, temperature and flow conditions.


The product is activated as needed from the two components A (liquid) and B (tablet/powder). After 3 hours, a pure, highly effective concentrate solution of 0.3% chlorine dioxide is created. Due to different container sizes, DEXDA ® Clean (Pro) offers a wide range of applications and dosing options.

Dosing examplesDosing quantity per
cubic metre of water
in the water
Disinfection of
water distribution systems
2 litres6mg/l
Biofilm removal/
shock disinfection

Pipe rehabilitation
6 litres

8 litres


According to §11 of the current Drinking Water Ordinance (TrinkwV), the dosage of the active ingredient chlorine dioxide of 0.05 – 0.4mg per liter is approved for the disinfection of drinking water. After treatment, a residual concentration of 0.05 – 0.2mg per liter should remain in the disinfected water. Accordingly, no costly and time-consuming multiple flushes are necessary after the disinfection of water-bearing systems. To monitor the application or residual concentration, we recommend chlorine dioxide quick tests.

Certifications and Standards

  • efficacy certificate according to DIN EN 13623

  • efficacy certificate according to DIN EN 1276

  • recommended active ingredient according to DVGW worksheet W291

  • active ingredient according to §11 of the current German Drinking Water Ordinance

  • starting materials according to the list of DIN EN 12671

Areas of application

  • drinking water
  • process water
  • apparatus and plant construction
  • mobile gastronomy (e.g. food trucks)
  • camping
  • trekking,
  • outdoors
  • boat/yacht
  • business trips
  • expeditions
  • dental field
  • emergency water supply

Available pack sizes

  • 100ml, 250ml, 1 liter and 5 liter
  • private label and other container sizes on request


Thanks to the 2-component system, the non-activated DEXDA ® Clean (Pro) can be kept for 3 years at -2…+50°C, protected from sunlight, stored upright and closed. Activated DEXDA ® Clean (Pro) containers are stored in a cool and dark place b(< 7°C), stored upright and closed for up to 3 months.


H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H412: Harmful to aquatic life with long lasting effects.

Signal word: Danger

Use biocides safely. Always read the label and product information before use.

Active substance:
Chlorine dioxide (≤3g/l)
BauA reg. No. N-69077
CAS No.: 10049-04-4

Technical data sheet (PDF)