ONA - Gel - 1-4L - Hyjo HydroponicsONA Gel is our most popular product and is practical for almost any odour problem.  When ONA Gel is exposed to the atmosphere, the ONA particles are released into the air and quickly eliminate any odours that they come into contact with, safely and permanently!

ONA Gel: Popular, Practical and Powerful. Eliminate Odours!

ONA gel is a complex mix of essential oils, suspended in a polymer gel. The essential oils are organically derived from plants throughout the world. When ONA gel is exposed to the atmosphere, the ONA particles are released into the air and quickly eliminate odours they come into contact with. ONA Gel odour neutralising molecules are released in a controlled manner so that every drop of this excellent product is fully optimised.

ONA Gel Provides True Neutralisation

Once ONA Gel is exposed to atmosphere, the ONA particles disperse through a process of natural evaporation. Any odourous molecules ONA comes into contact with will be neutralised. Unlike air fresheners, this is not a masking agent. ONA is an odour neutraliser that will permanently eliminate odours. 

Non Toxic and Environmentally Friendly

ONA Gel is industrial strength, yet safe for home or business use and can be used around people and pets.
ONA is non toxic, environmentally friendly and organic.

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Available in ProFresh LinenPolar CrystalApple CrumbleTropics and Fruit Fusion fragrances.


Available in 1L and 4L.

Instructions for Use

Open the lid and leave the ONA gel to naturally evaporate for as long as the odour is present. Occasionally shake the jar to agitate and mix up the contents. Alternatively, a reduced amount of ONA Gel can be placed into a smaller vessel and left until it has evaporated before topping up, thereby regulating the lifetime of the ONA Gel.

How to Use ONA Gel Efficiently

ONA Gel is our most popular product and is practical for almost any odour problem, however to get the most out of your Gel you should read these tips on how to use Gel most effectively.

The simplest way to use ONA gel is to just remove the lid and leave it to disperse through the air. If a large area needs to be treated then you will need a way to disperse the Gel further throughout the affected area.