ONA Gel Pro

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Size: 400g
£7.19 £7.99



ONA Gel is a mix of essential odour-neutralising oils suspended in a polymer gel. The essential oils are sourced organically from plants worldwide, producing a natural neutraliser. 

ONA Gel Provides True Neutralisation

Unlike air fresheners, this is an odour neutraliser, not a masking agent. The result is an entirely fresh-smelling atmosphere that will remain as long as no more odour particles enter the room; if the source of odour carries on, then the ONA Gel use should continue. Be aware of imitations that are appearing in the market. This undisputed and original odour neutraliser has served the hydroponics industry since 1995.

There are three types of mechanisms involved in the neutralisation of odours molecules:


First, molecular and electrostatic forces cause ONA molecules to attract and bond with the odour molecules, called adsorption.


Absorption occurs when the ONA molecule soaks up an odour molecule, which neutralises the odour.

Chemical Reaction

When a chemical reaction occurs, the combined odour and ONA odour molecules change to create a neutral compound, thereby eliminating the odour.

Instructions for use:

Open the lid and leave the gel to disperse for as long as the odour is present naturally. It is recommended that the jar is occasionally shaken to move the contents. To regulate the lifetime of the ONA Gel, pour a portion of the gel into a suitable container; once the ONA Gel has been used, top it up with more product. This will ensure you are not using more products than necessary.

Available ONA Gel Scents: Fresh linen, Apple Crumble, Pro

Available sizes: 400g, 732g, 3.8kg

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