The ONA block is a small quiet workhorse when it comes to odour control. It can be put anywhere and forgotten until the odour returns. A small wax block packed with 32 essential oils that are released in a timely manner neutralising and destroying any airborne odours.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.
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