Accepta Huwa-San – Eco-Friendly Hydrogen Peroxide & Silver Synergised Biocide

£40.00£271.80 ex. VAT

Order Quantity (25KG Drums)1-45-89-1617-3132+
Quantity Discount %0%2.5%5%7.5%10%

Huwa-San is a BPR registered Biocide

Prices are for 50% strength in 25KG drums. (Huwa-San NT TR50)

See below for other concentrations and pack sizes available POA

Hydrogen Peroxide Dropper Test Kit or Test Strips available for online order here.

This product replaces Accepta 8101



Huwa-San is a powerful, highly effective, broad-spectrum disinfectant that is both stable and safe.

Huwa-San is a solution of Hydrogen Peroxide (H2O2) which is stabilised using a proprietary ionic silver based chemistry.

When correctly applied to water, air or any surface, Huwa-San will disinfect through an oxidisation process and continue to safely provide excellent residual performance.

Huwa-San is chlorine and alcohol-free, with no corrosive effects on usual materials of construction during application. After use, it simply degrades into harmless water and oxygen.

Concentrations & Pack sizes available

Huwa-San 50% – 10l, 25KG, 1000l IBC – Most Popular

Also Available (POA)

Huwa-San 20% – 10l

Huwa-San 8% (Fog) 10l

Huwa-San 5% – 1l, 5l, 10l

Huwa-San 3% – 500ml Spray, 1l, 5l, 1000l IBC

hydrogen peroxide dosage levels

Legionella Control

The bacterium Legionella pneumophila and related bacteria are common in natural water sources such as rivers, lakes and reservoirs, but usually in low numbers. Given the right conditions, Legionella bacteria can prosper in purpose-built water systems in any type of premises.

When water contaminated with Legionella bacteria forms small droplets suspended in the air (aerosol or vapour), there is a very high risk of inhalation and the potential contraction of Legionnaires disease.


Cooling towers, evaporative condensers, spa pools/jacuzzis, hot and cold water systems.

Systems that feature outlets like showers are particularly problematic, as water is turned to an aerosol and dispersed into the atmosphere.

Hospitals and nursing homes are higher risk as vulnerability to Legionnaires’ disease increases with age and pre-existing health issues.


A biofilm is a group of microorganisms in which cells stick to each other and adhere to a surface. Biofilms provide bacteria a habitat that is the ideal environment for survival and replication. Additionally, the dispersal stage of the biofilm life cycle (illustrated below) enables the spread and colonisation of additional surfaces.

Biofilms can be found where:

  • Pipework that contains deposits that could provide a source of nutrients.
  • Dead legs and/or low water flow areas exist.
  • Water temperature is between 25°C and 45°C.
  • Water is stored and /or recirculated.

Product Benefits

  • Broad spectrum high-performance biocide effective against all kinds of bacteria, viruses, yeast, mould and spore formers
  • Efficacy against Legionella pneumophila
  • Environmentally friendly – practically 100% degradable breaking down to water and oxygen … (2 H2O2 = 2 H2O + O2)
  • Does not create odour or alter the taste of foodstuffs treated
  • Effectiveness and long-term effects are seen even at very high water temperatures
  • Assessed as safe for consumption at the recommended dose rate
  • No carcinogenic or mutagenic effect
  • Does not react with ammonium-ions – no ‘breakpoint’
  • By adding oxygen, anaerobic conditions in the cooling water are largely avoided, thus preventing the growth of sulphate-reducing bacteria (formation of corrosive hydrogen sulphide – 4 H2 + SO42- S2- + 4 H2O)
  • Long-term effectiveness: reliably prevents recontamination
  • Toxicology: harmless, neither carcinogenic nor mutagenic
  • Storability: very long, max. loss of concentration 3% per year
  • Corrosion: very low corrosive effect at recommended dose rate
  • Measurement and regulation – complete installation programme available
  • Expenditure for equipment resp. investment costs: negligible
  • Operating costs: low


The efficacy of HuwaSan relies on its remarkable stabilisation chemistry. The silver stabiliser, which is added to the hydrogen peroxide, is a complex salt mixture formulated around ionic silver.

A silver ion is an atom of silver that is missing one electron. The outermost electrons of an atom determine the physical properties of the matter. Taking away one electron from a silver atom results in a silver ion. The ionic silver contained within Accepta HuwaSan acts as a stabiliser and a catalyst, resulting in extended stability during application and giving a half-life* of up to five weeks in potable water


HuwaSan may be considered as a ‘safe biocide’. After a 2 year safety study, the globally respected National Sanitation Foundation (NSF) gave approval for the continuous addition of HuwaSan to drinking water supplies.

The World Health Organization (WHO), Environmental Protection Agency (EPA) and NASA have all produced documents indicating that drinking water can contain levels up to 50ppb** silver without compromising public safety. At recommended dosing levels, HuwaSan would contain less than 10ppb** of silver.


HuwaSan is truly biodegradable and leaves no harmful residuals. Post disinfection, Accepta HuwaSan degrades into water and oxygen, substances that are found naturally.

Areas of Application

Water Supplies

Drinking water
Treatment of drinking water, disinfection of cisterns, tanks, pipes, drinking fountains, etc.; long-term conservation of emergency water supplies (e.g. military, civil defence).

Sewage treatment plants (public and industrial).

Food & Beverage Sector

Drinks industry
Breweries, producers and bottler’s of mineral water, soft drinks, fruit juices, must/cider, wine industry, etc.

Dairy industry
Milk, cheese, butter, dairy products like yoghurt, etc.

Food processing industry
Canning factories, prepared food producers, butchers, abattoirs, mills, fish processing, chocolate factories, edible oil/margarine/shortening factories, pasta and farinaceous producers, bakeries, food packing, etc.


Animal husbandry
Breeding establishments, such as poultry/rabbits/guinea pigs, disinfection of stalls and stables, animal processing, fish farms, ponds with shrimps, mussels and oysters, terrariums, aquariums, zoos.

Fruit and vegetables
Hors sol production, plantations. Pre- and post harvesting disinfection.

Tobacco Manufacturers

Air-Conditioning & Refrigeration Plant

Disinfection of humidifiers, elimination of algae, cooling towers, air-conditioning equipment.

Hospitals, Public & Commercial Buildings

Hospitals, nursing and old people’s homes
Disinfection of surfaces, instruments, laundry, etc.

Important note – this product must NOT be used for the treatment of water feeding renal dialysis (or similar) units.

Sanitary disinfection
Hotels, restaurants, canteens, households, storage and warehouses, schools, universities, gymnasiums, showers, lockers, toilets, etc.

Medical & Cosmetics

Medical, dental and veterinary surgeries
Disinfection of surfaces and medical equipment, implements and instruments, humidifiers, sanitation.

Chemical, pharmaceutical and cosmetic laboratories.
Disinfection of surfaces and equipment in production sites for medicines, perfumes, essences, dyes, photo equipment, etc.

Consumer Goods

Travel (drinking water, sanitation), camping, hobbies, tanks for drinking water and wastewater equipment (caravans, ships, etc.) and vessels. Disinfection of beaches.

Disinfection of baths, showers, WC’s, mirrors, glass, carpets, etc.

Swimming Pools

Private swimming pools, public swimming pools, hotel and spa baths, whirlpools, sauna baths, fitness centres, solariums, etc.

Safety, Storage & Handling

For full details concerning safety precautions, storage and handling procedures for this product please refer to the latest Safety Data Sheet. To request the latest MSDS for this product please fill out the form below.

    Additional information

    Weight 25 kg

    Huwa-San – 50% 25Kg, Huwa-San – 50% 12Kg, TR5 – 5% (6 x 1l bottles)