ONA – Block is a proven, solid odour neutraliser trusted worldwide in commercial environments, and indoor spaces where persistent odours need reliable control. Rather than masking smells, ONA Block actively neutralises odour molecules at the source, leaving the air genuinely fresh.
Thanks to its slow-release gel formula, ONA Block provides long-term odour control with minimal effort. Simply remove the lid and place the block in the desired area to allow continuous neutralisation over time. However, it should not be used directly inside grow rooms, as it may interfere with plant aromas.
Key Benefits:
Neutralises odours rather than masking them.
Long-lasting slow-release gel formula.
Suitable for indoor spaces, ducting runs, and ONA Duct Air Filters.
Easy to use, low-maintenance, and cost-effective.
Great value for money for commercial or domestic use.
Instructions for Use:
For best results, place in air-out ducting runs or used in combination with the ONA Duct Air Filter. By installing the duct filter inline and placing the block inside the dedicated compartment, odours are neutralised before air exits the space. Additionally, larger duct filters can accommodate multiple blocks for increased effectiveness.
