ONA Block

  • ONA Block – Odour neutraliser in solid wax form
  • Ideal for small enclosed spaces
  • Permanently removes unwanted odours from the air
  • Not a masking agent but genuine odour neutralisation agent
  • Non Toxic
  • Environmentally Safe
  • Organic
  • Safe to use around people pets and plant
  • ONA Blocks can be used in conjunction with odour control ducts to neutralise odours in your ducting
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SKU: ONABLOCK Categories: ,


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ONA Block – Small Size, Large Performance

The ONA Block is a small quiet workhorse when it comes to odour control. Put it  anywhere and unwanted smells will be taken out fo the air.

A small wax block packed with 32 essential oils that are released in a timely manner neutralising and destroying any airborne odours.

Whether you put it in your gym bag, entrance closet or under your car seat, it will neutralise the strongest odours without being noticed.

Odour Neutraliser in Solid Wax Form

The ONA Block is an odour neutraliser in solid wax form. It is a complex formula of essential oils – industrial strength yet safe for home and business, and can be used around people pets and plants.

Ideal for Small – Medium Sized Areas

ONA blocks are ideal for pet smells around dog baskets, litter trays and toilets. Cars, boats and motor homes are suitable for Blocks especially when they have been in storage and subject to dampness or mustiness! The ONA block will release its powerful odour neutralising agent and keep the location free from undesirable odours.

The blocks can also be used to neutralise odours in your ventilation system when used in conjunction with our odour control ducts

ONA Block Scents

ONA Blocks are available in ProFresh LinenPolar Crystal , Apple Crumble and the brand new Tropics Scents


ONA Blocks available in 170g size only (48 units per case)


0.22 Kg

ONA Blocks: Instructions for Use

ONA blocks are a fast and easy way to fight against odours at their source in small sized areas. Simply open and expose to the air or remove the block from its container. The lifetime of the ONA block will vary but it will be effective for about 4 weeks relative to the airflow and environment around the block. To limit the amount of odour control and extend the life of the block, drill holes through the lid making it excellent for clothing storage, gym bags and diaper pails.

ONA Block Fresh Linen

How to Use ONA Block Efficiently

ONA Blocks are our most popular product for use in small enclosed areas.

All you need to do is remove the lid and expose the wax block.

If you need to increase the exposure of the ONA then you can remove the wax block from the plastic casing. To increase the surface area further still you can grate some of the wax block into a bowl.

To decrease the exposure of ONA make use of the ventilated lid supplied; remove the seal and reattach the lid.

Further Reading

The Science of ONA

The History of ONA

ONA Product Information

Additional information


PRO, Apple Crumble, Fresh Linen, Polar Crystal, Tropics


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