
ONA Air Filter
This filter will provide continuous neutralisation of your ventilations odours until the ONA Blocks are exhausted. Once the blocks have been fully consumed the lid can be opened and the blocks replenished.
ONA Air Filter
£18.00 – £40.68
ONA Air Filter is a portable ventilation system that neutralises strong odours from your indoor garden using the permanent and effective odour elimination of ONA Blocks. Providing continuous air filtration of your indoor gardens air exhaust. Just attach to your ventilation system, insert the desired number of ONA blocks.
Available in a number of different diameters to cater for your hydroponics set up: 4, 6, 8, 10 & 12 inch ducts.

PRACTICAL ODOUR CONTROL
![]() | Retail packaged with graphical instructions for use |
![]() | Air Filters for ventilated odour control |
![]() | Metal lid with rubber seal to ensure air tight |
![]() | Desired blocks inserted into mesh work metal tube within ducting |
![]() | Air blows through the filter & any odours will be removed |
HOW TO USE
The Air Filter is simple and easy to use, for best results use with ONA Blocks.

ONA – Odour Neutraliser – Remove Odours Safely, Naturally & Permanently
ONA Odour Neutraliser has been providing customers with efficient odour removal for many years and is used in commercial applications worldwide. ONA was originally developed for use in industrial applications to remove unwanted smells in sewage treatment plants, rendering plants and chemical plants. It uses three processes: absorption, adsorption and the “Pairs” Theory to virtually cancel out most organic and non-organic odours.
ONA’s formulation is designed to attack any type of odour, regardless of type or source. Because it is a wide spectrum formulation, it will neutralise virtually every non-organic and organic odour, and leave only a clean, fresh scent.
ADDITIONAL PRODUCT INFORMATION
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