O3 Chemicals GREEN Air Conditioner Coil Cleaner

O3 GREEN is a powerful, new generation, new technology, non-corrosive, concentrated, chemical cleaner, specifically designed to remove health-threatening mould, bacteria, and fungi growing in general dirt and moisture in AHUs leaving them in a sanitised condition.
O3 GREEN  Coil Cleaner can be diluted up to 15 times, making it the most competitively-priced Coil Cleaner on the market.

The latest 2025 formulation upgrade allows for O3 GREEN  to be applied in two ways. The first method uses a 50-litre oil-free compressor set at 5 bars. The second method allows O3 GREEN  to be applied with a backpack compressor set at 3 bars.

At 5 bars, O3 GREEN  will dissolve any mould and bacteria infected dirt or grime into small black pellets which are extruded through the rear of the coil into the aircon pan. These can be swept into the drainage system using a brush or a broom.

When applied with a backpack set at 3 bars, O3 GREEN  is rinsed off into the front aircon pan using the latest version of O3 SmartFinish.

The wasteful use of Tap water is eliminated in both applications.

O3 GREEN Coil Cleaner 5 litre Prices with Discounts

Case orders may be mixed, for example: 1 case O3 SmartAir +1 case O3 SmartFinish to make up a 2 case order. Or 1 case O3 SmartAir + 1 case O3 SmartFinish + 1 case O3 GREEN + 1 case O3 Alkaline D + 1 Case O3 Bio Degreaser for a 5 case order. Mix them as you please.

• Order 2 cases (8 bottles) and receive a 7.5% discount for R2875
• Order 5 cases (20 bottles) and receive a 10% discount for R6804
• Order 10 cases (40 bottles) and receive a 12.5% discount for R12,863

O3 GREEN Coil Cleaner 1 litre Prices with Discounts

Case orders may be mixed, for example: 1 case O3 SmartAir +1 case O3 SmartFinish to make up a 2 case order. Or 1 case O3 SmartAir + 1 case O3 SmartFinish + 1 case O3 GREEN + 1 case O3 Alkaline D + 1 Case O3 Bio Degreaser for a 5 case order. Mix them as you please.

• Order 2 cases (24 bottles) and receive a 7.5% discount for R2465
• Order 5 cases (60 bottles) and receive a 10% discount for R5832
• Order 10 cases (120 bottles) and receive a 12.5% discount for R11,025

Download the How-to-Use Reference Card & Safety Data Sheet for this Product.

How Often Should You Clean?

AHUs:  We have always recommended AHUs should be cleaned, and sanitised 4 times per annum.
The first clean should be done using O3 GREEN or O3 Alkaline D in a 1:1 dilution.
Before and after air flow readings are essential to monitor the effectiveness of the clean.
Thereafter a clean and sanitising should be done every three months using a 1:15 dilution of either chemical.
Again air flow readings must be taken. We also strongly advocate the taking of before and after pictures, using a smartphone or tablet.

FILTERS:  Filters play an important role in reducing mould development in an AHU or HVAC. They should always be kept in pristine condition.

AHU Filters:  In line with the latest Ventilations health and safety requirements:

O3 Rapid-Cleaning Method

Watch a VIDEO of How Quick it is to Clean with O3 GREEN.

Quoting from S.A. government health regulations governing air conditioning operation

38. Every employer must –

38.1 Keep the workplace well ventilated by natural or mechanical means to reduce the SARS-CoV-2 viral load;

38.2 Where reasonably practicable, have an effective local extraction ventilation system with high-efficiency particulate air HEPA filters, which is regularly cleaned and maintained, and its vents do not feed back in through open windows;

38.3 ensure that filters are cleaned and replaced in accordance with the manufacturer’s instructions by a competent person.

Our Improved Method for O3 GREEN Chemical Application

O3 Chemicals has developed a new method of applying our chemicals

We reasoned if we could get enough pressure to penetrate right through a coil without damaging it, we could more easily remove contaminants bearing mould, bacteria and fungi. We tested many compressors, but always found immediately we started spraying the chemical onto an AHU, or HVAC, the pressure would drop alarmingly.

We finally had a breakthrough when we discovered the latest TradeAir oil-free, silent compressors,  which, unlike ordinary compressors, maintain their set pressure throughout the length of the clean. They have also enabled us to introduce new cleaning techniques, which are extremely cost-effective, and far more efficient compared to the normal method of applying the chemicals with a garden pressure pump, and a hosepipe to rinse off. Instead they reduce cleaning times dramatically, and enable the technicians to limit the amount of water required to rinse off a chemical to just a few litres.

To do a first-time clean, we use a 50 litre TradeAir Twin Head silent compressor, set at 5-bar pressure. We apply O3 Alkaline D in a 1:1 dilution. The chemical is poured into a 1-litre paraffin spray gun attached to the compressor. The constant pressure from the compressor will allow us to clean right through the coil, without having to clean from the reverse side as well. Because of this consistency, we use a far smaller quantity of chemical. Leave the chemical on for 15 minutes.

Extremely Important:  DO NOT USE A HOSEPIPE TO RINSE OFF.
A 20mm hosepipe spews out 80 litres of water per minute!
Rather pour the water into the paraffin spray gun, and rinse of at 5-bar pressure.
Cleaning times are reduced dramatically. No mess to clean up afterwards.
You will be amazed at how little water is required – just a few litres!

View a VIDEO TUTORIAL of How to Clean with O3 GREEN.
Using O3 Alkaline 'D' in combination with a TradeAir 50 litre silent, oil free compressor
your clean is a whole lot more efficient.

Where can you buy a "Trade Air" Compressor?

O3 Chemicals now offer the TradeAir compressor as part of our programme.
While these compressors could be bought at Makro or Takealot, we place so much importance on this method of cleaning AHUs and HVACs that We are keen for the Contractors to recover the cost of the machines in a matter of months, while delivering a far higher standard of cleaning for their clients.

The TradeAir compressors can guarantee that Property Owners, and Facilities Managers will achieve more cost-effective, and more efficient results from their contracts.