Chlorine Free Spa Sanitiser: Hydrogen Peroxide

Most pools and spas across Australia are sanitised using chlorine or bromine and for good reason- they’re effective and widely available. However as more pool and spa owners become conscious of comfort, water feel, and environmental impact, interest in chlorine free spa sanitisers has been steadily growing. Many spa owners are now looking for options that still deliver reliable sanitation, but with fewer harsh side effects commonly associated with traditional sanitisers.
One chlorine free spa sanitiser gaining attention is hydrogen peroxide-based sanitising systems. These systems offer a different approach to water treatment by using oxidising agents rather than traditional halogen sanitisers. Products such as Poppits and Peroxsil 395 are designed to sanitise spa water effectively while being noticeably gentler on skin, eyes, and swimwear. They’re also appealing to owners who want to reduce chemical odours, minimise environmental impact and enjoy water that feels softer and more comfortable to swim in.

Poppits is a chlorine free spa sanitiser endorsed by the National Asthma Council of Australia, so you can feel confident it’s a gentle choice for anyone with respiratory troubles. It’s a reassuring option for pool and spa owners who want effective sanitation without the harshness of strong chemicals.

How Poppits Sanitises
Poppits uses Hydrogen peroxide (H₂O₂) which is a powerful oxidiser that breaks down into water and oxygen, releasing active oxygen to destroy bacteria, viruses, and organic contaminants. This process leaves water fresh and odour-free. Unlike chlorine, Poppits doesn’t form chloramines which are often the cause of eye and skin irritation.
This chlorine free spa sanitiser also environmentally friendly because it breaks down into water and oxygen, leaving no harmful residue behind. This means it doesn’t add to Total Dissolved Solids (TDS) in your spa, making water balance easier to maintain and extending the time between refills. It’s a simple way to keep your spa cleaner, healthier and easier to enjoy.
How Peroxsil 395 Sanitises
Peroxsil 395 is a chlorine free spa sanitiser considered more effective than Poppits because it combines hydrogen peroxide with silver nitrate giving your spa water ongoing antibacterial protection. The silver ions work continuously to help control bacteria even between doses, which means your spa stays cleaner for longer with less effort. This makes Peroxsil 395 a low-maintenance option that is particularly well-suited for outdoor spas where environmental factors like sunlight, dust and debris can challenge water quality.

Using an Oxidiser with Peroxide
Although peroxide is an oxidiser, it is recommended to support it with a non-chlorine shock such as Quick Fix (Potassium Monopersulphate). Used weekly or after heavy spa use, Quick Fix breaks down body oils and waste that peroxide alone may not remove. In turn, this improves water clarity and reduces peroxide consumption.
Quick Fix ishould be used when starting up a new spa or giving your spa water a refresh. Simply add Quick Fix first and then wait 2–4 hours before adding your Poppits sanitiser. This step helps your chlorine free spa sanitiser work effectively keeping your spa water clean, balanced, and ready to enjoy.

Advantages of Peroxide Sanitisers
✅Reduced risk of allergies
✅Reduced skin and eye irritation for a more enjoyable spa experience
✅It’s odourless leading to a more pleasant and relaxing experience
✅It’s Effective against bacteria & viruses
✅ Environmentally friendly as it breaks down into water and oxygen
✅ Effective in warm water so its perfect for spas.
Key Considerations
Before diving into the specific steps, it’s important to understand that peroxide-based sanitisers like Poppits rely on good water balance and consistent care to work at their best. While these chlorine free spa sanitisers are known for being gentle and low-irritation, they’re not a “set and forget” solution. Paying attention to sanitiser levels, overall water balance, and regular oxidation plays a big role in keeping your spa water clean, clear, and safe to use.
- Like any sanitising system, Poppits only does its job when the water is properly maintained. This means keeping the sanitizer at the right levels (usually around 60–100 ppm for spas) so it can work effectively. It also means making sure your water balance is correct, with particular attention to pH and alkalinity levels.
- Regular shocking with a non-chlorine oxidiser like Quick Fix is an important part of keeping your spa water clean and clear. Be careful to avoid mixing it with chlorine or bromine products as this can affect how both chemicals work.
The Bottom Line
Peroxide-based systems like Poppits and Peroxsil 395 deliver clear, comfortable, and chlorine-free water when maintained correctly. With balanced water and occasional oxidising treatments, they offer a natural, effective, and low-irritation alternative for pools and spas.
Whether you need help understanding peroxide systems, considering alternative chlorine free spa sanitisers, testing and maintaining your water balance or choosing the right products to keep your pool or spa in top condition, our friendly team at My Pool Shop Melbourne are here to make it easy to enjoy sparkling, safe, and balanced water, “because everybody deserves a healthy pool”.


