The cleaning industry's dirty secret

Most cleaning products contain toxic fumes and hormone-disrupting chemicals like VOCs, phthalates, and worse. Koh cleans powerfully - without the health risks.

Ditch toxic cleaners

Independent studies expose the toxic truth behind traditional cleaning products.

Study shows 193 hazardous VOCs released by traditional cleaners - linked to health risks

Environmental Working Group

Australia leads in asthma — study links traditional cleaners to 37% more child cases

Canadian Institutes of Health Research

Fragrance in traditional cleaners linked to lung, brain, immune and hormone damage

American Lung Association

20 cigarettes

20-year study finds traditional cleaners as harmful as smoking 20 cigarettes a day

University of Bergen

When headlines start looking like warnings

The world’s biggest publishers are sounding the alarm on toxic cleaners.

The science behind safer cleaning

Developed with UNSW, Koh Universal Cleaner is made with scientifically purified water and a trace of potassium hydroxide - the same compound used to make liquid soap. Safe, simple, certified.

Certified safe: backed by science, trusted by experts

Koh's commitment to health and sustainability is validated by leading certifications. Each endorsement reflects rigorous testing and standards, ensuring our products are safer for you, your family, and the planet.

GECA certification ensures products meet comprehensive sustainability criteria:​ Human Health, Environmental Impact, Social Responsibility, and Performance.

The Sensitive Choice program identifies asthma and allergy-friendly products through rigorous assessment by an expert panel before approval.

Awarded the Allergy UK Seal of Approval after a human trial on people with diagnosed chemical sensitivities - no reactions, even on the most sensitive skin.

We built the safest cleaning kit - so you can breathe easier

Premium tools. Reusable, refillable, built to last. Designed for a safer clean, without the toxins or the hassle. We obsess over it, so you don’t have to.

What are EDCs - and why should you care?

This video breaks down the real risks of phthalates and endocrine disrupting chemicals found in traditional cleaning products.

Make the switch

1 in 4 have a chemical sensitivity

★★★★★ 4.7/5 from 100,000+ reviews

Trusted by families, loved for safety

Discover why these kits are customer favourites - combining value, effectiveness, and safety.