Air-conditioning Blocks
Gelair™ Air-conditioning Blocks (ABs) provide a simple, effective solution for controlling the spread of harmful microorganisms and bacteria including Legionella pneumophila (Legionella), mould (including hidden mould), and enveloped viruses such as COVID (SARS-CoV-2), RSV, hantavirus and Influenza A and B.
ABs are designed for ducted air-conditioning systems of all sizes, from single room systems to large air handlers. Engineered with a unique delivery system, they release a sustained concentration of pure Australian Tea Tree Oil vapour to treat your air-conditioner, components and the air passing through it, helping maintain cleaner air while supporting system efficiency. Microbial build-up on, and in, system components can reduce performance and increase energy use.
Each AB typically lasts up to 12 weeks *. Lifespan may vary depending on environmental conditions, including:
- Temperature
- Relative Humidity *
- Airflow
- Continuous system operation *
Gelair Air-conditioning Blocks are available in the four sizes to suit a range of system capacities.
Key Benefits
- Powered by 100% pure Australian Tea Tree Oil
- 360° treatment - treats the air, the air-conditioning system and the room
- Antimicrobial and antifungal
- Purifies the air and improves airflow in the system
- Controls bacteria (including Legionella) and mould
- Reduces enveloped viruses such as COVID, RSV, hantavirus and Influenza A and B
- Manages odours caused by mould and bacteria
- Supports longer system life and performance
- Zero bacterial resistance
- Simple to install
Air-conditioning Blocks product codes & size guide
Refer to the guide below to identify product codes and to select the correct product size for your system.
| Product code | Product name | System size |
|---|---|---|
| AB0.5 | Air-conditioning Block 0.5 kg | Small system or single room air-conditioner |
| AB1 | Air-conditioning Block 1 kg | Large single room Fan Coil Unit (FCU) e.g. typically used in hotel rooms or large superyacht staterooms |
| AB2 | Air-conditioning Block 2 kg | Larger multiple room AHU e.g. house |
| AB4 | Air-conditioning Block 4 kg | Large AHU for multiple room building e.g. 10 - 20 offices |
* Performance and calculations are based on standard system operation defined as less than 10 hours per 24 hour period. Usage in tropical or sub-tropical regions may require more frequent AB replacement, typically every 4 - 6 weeks.
More Information
The documents below include detailed product information and installation instructions - simply open the links to learn more.
Gelair Air-conditioning Blocks - Product Information
Gelair Air-conditioning Blocks - Installation Guide
Frequently Asked Questions
Gelair products are scientifically engineered with a unique delivery system that ensures the sustained release of pure Australian Tea Tree Oil vapour, providing continuous microbiological, viral, and fungal control through the entire air-conditioning system and the room/s it services.
Gelair’s innovative technology is highly effective in high-volume, high-airflow environments such as AHUs. By treating all air entering and exiting the AHU, Gelair ABs sanitise the entire air-conditioning system, effectively stopping the spread of bacteria, airborne viruses and mould.
- Outside air (10%)
- Outside air duct
- Air filter
- Gelair Air-conditioning Block
- Cooling coil
- Heating coil
- Air blower
- Supply air duct
- Conditioned air
- Return air (90%)
- Exhausted AB in condensate Tray