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Disinfectant fogger chemistry: hydrogen peroxide, efficacy and why there's no residue

The machine is only half of it. What you fog with decides whether the treatment stands up in an audit, whether it damages your equipment, and whether anyone has to clean up afterwards.

In short

A disinfectant fogger for infection control uses hydrogen peroxide based chemistry, which breaks down to water and oxygen, leaves no residue and produces no waste to dispose of. Independent sporicidal testing and university research support reductions of up to 99.9999% across bacteria, viruses, fungi and spores, including on equipment and electronics.

5 min read

Sanondaf disinfection units deployed in a laboratory

Why is hydrogen peroxide used in a disinfectant fogger?

Sanondaf's published article on hydrogen peroxide and its environmental impact makes the case plainly: it is widely recognised as a more environmentally responsible alternative to traditional fumigation gases, it breaks down to water and oxygen, it leaves no residue and it produces no waste stream to dispose of.

For a food factory, a NICU or a research building, 'nothing left behind' is not a nice-to-have. It is the reason the treatment can be run during a normal downtime window instead of a shutdown.

How do we know it works?

Independent sporicidal efficacy testing of Sanosil S010 delivered by fogger supports use where spore-forming organisms such as C. difficile are the concern. University research conducted in partnership with Sanondaf examined how the delivery system influences efficacy of low concentrations of hydrogen peroxide against common healthcare-associated pathogens — confirming that how you deliver the chemistry matters as much as the chemistry itself.

Further Sanondaf case study work reviews vapourised hydrogen peroxide and its efficacy of inactivation of prions and viruses, among the most difficult contaminants to inactivate. Together this supports reductions of up to 99.9999% across bacteria, viruses, fungi and spores.

Will fogging damage equipment, electronics or materials?

The standard objection is equipment damage. A Sanondaf case study of hydrogen peroxide use on equipment and materials looks directly at the effect on equipment, electronics and materials, and a separate study demonstrated full decontamination of a contained vessel within a biotechnology facility without dismantling the equipment involved.

How much chemical do you need, and how is it supplied?

Chemical supply runs alongside the lease. The initial order is a minimum of 100 litres unless otherwise authorised, with ongoing minimums set against your treatment plan, and three months of lease payments are required upfront at the start of the term.

Once it is on site, the cost model is simple: lease cost divided by the number of rooms you treat, plus chemical. Treat more rooms, and the cost per room falls.

Frequently asked

Does a disinfectant fogger leave residue on surfaces?
No. The hydrogen peroxide based chemistry breaks down to water and oxygen, leaving no residue and no waste output requiring disposal.
Is it safe around electronics and sensitive equipment?
Sanondaf case study material specifically reviews hydrogen peroxide use on equipment, electronics and materials, including full decontamination of a contained biotechnology vessel without dismantling the equipment. Compatibility is confirmed as part of your site survey.
How much chemical do we need to start?
A minimum initial order of 100 litres unless otherwise authorised, ordered alongside the machine at the start of the lease.

Sources: material published by Sanondaf UK at sanondaf.co.uk (news, research and case studies) and the technical and commercial documentation held by the Shropshire & West Midlands office. Figures are indicative and confirmed at survey. Efficacy is stated as up to 99.9999% reduction.

Next step

Ask about leasing, or a supervised first treatment

Tell us the sites and room counts and we will come back with a preventative treatment plan and the cost per room.

Enquire about this sector

Ask us about disinfectant fogger

Tell us about the sites and spaces involved and we will come back with a costed, documented answer. Leasing is available to approved registered organisations only.

Enquiry type

For urgent outbreaks call 07462 479 576.

More guides

  • Equipment guide

    What a disinfection fogging machine actually does — and why leasing one changes the maths

    Read guide
  • Buyer's guide

    Choosing a fogger machine for infection control: what to compare before you commit

    Read guide
  • Leasing

    Fogging services or your own leased machine? An honest comparison

    Read guide

Where we can lease

Leasing reaches further than Shropshire and the West Midlands

This is the Shropshire & West Midlands office, but Sanondaf is a network. If your group has sites elsewhere, a machine can very often be leased there too, with the same training, calibration and preventative treatment programme — so one policy covers every site rather than one region.

United Kingdom & Islands

  • 12 offices across the UK, plus a further six in Scotland
  • Coverage across many areas of Northern Ireland and Wales
  • Channel Islands

International offices able to lease

  • Iceland
  • Malta
  • Lebanon
  • Thailand
  • Mexico
  • South Africa
  • USA

New regions and countries are opening every few months. Tell us where your sites are and we will confirm what can be covered today.