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Is Universal Cleaner safe for asthma and allergy sufferers?Updated 5 hours ago

TL;DR: Yes. Universal Cleaner is certified by Allergy UK and the Eczema Association of Australasia, and approved by the National Asthma Council of Australia's Sensitive Choice program. The two-ingredient formula (potassium hydroxide and reverse osmosis water) is fragrance-free, phosphate-free, and paraben-free, with none of the additives that commonly trigger asthma, allergic reactions, or eczema flares.


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Koh Universal Cleaner safe for homes and surfaces
Koh Universal Cleaner GECA eco-certified (Good Environmental Choice Australia)

Is Universal Cleaner safe for people with asthma?

Yes. Koh Universal Cleaner is approved under the Sensitive Choice program, run independently by the National Asthma Council of Australia, and certified by Allergy UK, whose certification programme covers respiratory allergens that overlap heavily with asthma triggers. These certifications mean the product has been independently assessed as a better option for people with asthma. The fragrance-free, low-fume formula avoids the airborne triggers (perfumes, harsh solvents, chlorine, ammonia, VOCs) that commonly set off asthma attacks in conventional cleaning products. The formula is just two ingredients: potassium hydroxide and reverse osmosis water. There are no fragrance compounds and no volatile organic compounds added to mask the cleaning chemistry.

✓ Allergy UK + Sensitive Choice approved

Allergy UK certified, and Sensitive Choice approved by the National Asthma Council of Australia. Both independently assess products as better choices for asthma and allergy sufferers. No fragrance (a top asthma trigger), no harsh fumes, no chlorine, no bleach, no ammonia. Two ingredients only: potassium hydroxide and reverse osmosis water.

Allergy UK Fragrance-free No harsh fumes No chlorine No bleach

Is Universal Cleaner safe for people with allergies and eczema?

Yes. Koh Universal Cleaner is certified by Allergy UK (the UK's leading allergy charity) as a better choice for allergy sufferers, and is certified by the Eczema Association of Australasia (since October 2025) as suitable for eczema-prone households. The two-ingredient formula avoids the most common cleaning-product allergens: synthetic fragrances, preservatives such as parabens and methylisothiazolinone, dyes, and harsh surfactants. Good for skin allergies, hayfever triggered by fragrance, eczema, contact dermatitis, and chemical sensitivities. Always patch-test on a small skin area if you have a known reactive condition before extensive use.

✓ Allergy UK + Eczema Association certified

The simple formula avoids common allergens in cleaning products: synthetic fragrances, parabens, methylisothiazolinone, dyes, and harsh surfactants. A good choice for anyone with skin allergies, eczema, hayfever, or chemical sensitivities. Allergy UK certified and certified by the Eczema Association of Australasia (the peak Australasian eczema body).

No synthetic fragrance No parabens No dyes No harsh surfactants

How can I reduce trigger exposure while cleaning?

Even with an Allergy UK, Sensitive Choice, and Eczema Association certified cleaner, simple routines help minimise exposure for asthma, allergy, and eczema sufferers. Ventilate the room by opening a window or door for airflow. Where practical, ask someone else to clean heavily affected spaces (such as bedrooms) before you return. Wipe rather than over-spraying generously in small or enclosed rooms; spraying onto the cloth instead of the surface reduces airborne mist. Pair Koh Universal Cleaner with microfibre cloths, which trap dust, pollen, and dander rather than flicking them into the air. Wear gloves if you have known contact dermatitis. Keep windows or fans on for 10 to 15 minutes after finishing.

✓ Three-step low-trigger clean

1

Ventilate. Open a window or door. Good airflow helps disperse any trace airborne particles during and after cleaning.

2

Wipe instead of over-spraying. In small or enclosed rooms, spray onto the cloth rather than misting the surface generously.

3

Use microfibre cloths. They trap dust, pollen, and dander rather than flicking them into the air. Pair Universal Cleaner with Universal Cloths for best results.

Koh Universal Cleaner 2L

Universal Cleaner

Allergy UK certified. Sensitive Choice approved. Eczema Association certified. Fragrance-free, two ingredients.

Browse all Universal Cleaner products

Last reviewed: May 2026 · Koh UK

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