ONA Air Filters allow for the complete and continuous air filtration of your indoor gardens air exhaust. Just attach to your ventilation system, insert the desired number of ONA blocks, and any unwanted odours will be removed from your ducting, quickly effectively and permanently.

Note that ONA Blocks are available separately.

• ONA – Superb, long-lasting & totally reliable odour control
• Treats air as it’s removed from your grow area
• An ultra-efficient delivery system for ONA’s odour destroying products