ONA
Eliminate persistent odours from your grow space. This collection offers solutions starting from €2.99.
Discover ONA Blocks, Gels, Liquids, and Sprays. Solutions cover entry-level to professional applications.
Eliminate persistent odours from your grow space. This collection offers solutions starting from €2.99.
Discover ONA Blocks, Gels, Liquids, and Sprays. Solutions cover entry-level to professional applications.
ONA Gel Polar Crystal 4 l
ONA Gel Polar Crystal 1 l
ONA Gel Lemon Grass 500 ml
ONA Gel Fruit Fusion 4 l
ONA Gel Fruit Fusion 1 l
ONA Gel Fresh Linen 500 ml
ONA Gel Apple Crumble 500 ml
ONA Gel Apple Crumble 4 l
ONA Gel Apple Crumble 1 l
ONA Block Polar Crystal 170 g
ONA Block Lemon Grass 170 g
ONA Block Fruit Fusion 170 g
ONA Block Dispenser, rozprašovač na ONA Block
ONA Block Apple Crumble 170 g
ONA AutoMist Odour Diffuser White, rozprašovač
ONA AutoMist Odour Diffuser Black, rozprašovač
You'll get your package in 3-5 days no matter where you are in EU.
Cost is 7 to 15 EUR under 30kg.
We'll send you a tracking number as soon as your purchase dispatched.
You'll receive a notification on each stage of delivery
We use all the variety of shipping companies, if you have a prefered one - let us know, we'll send with it for your convinience.
See more on Shipping details page.
You can get a refund or replacement after up to 30 days from purchase.
But we ussualy stand on customers side, so we can give a 60 days time frame!
See our free grow calculators for hydroponics and indoor gardening.
Estimate nutrients, lighting, VPD, irrigation, plant spacing, and grow planning.
It's free.
We are a team of 10 with a decade of wise expirience in growing and gardening, so if you'll have any need of help, we'll guide you to your goal within 2 months from a purchase.
GoToGarden started in 2017 out of personal frustration. Our founder was a hobby grower who spent hours navigating online shops that felt built by people who had never touched a plant — cluttered layouts, vague product descriptions, no real guidance on what to actually buy or why. He knew there had to be a better way.
See more on About us page
Estimate nutrients, lighting, VPD, irrigation, plant spacing, grow planning.
Our free calculators for hydroponics and gardening.
Persistent and unpleasant odours can be a major issue for indoor growers, affecting the environment for plants and creating a noticeable presence outside the cultivation area. This collection provides a comprehensive range of ONA products designed to actively neutralise and eliminate a wide spectrum of odours, not just mask them. Whether dealing with the inherent smells of plant growth, residual odours from previous cycles, or general household smells, these solutions offer effective and long-lasting odour control, ensuring a fresher environment. ONA products are formulated with natural essential oils, making them safe for use around people, plants, and pets, with specific formulations effective for approximately 4 weeks.
The ONA collection offers diverse product formats to suit every need and application. You can find powerful ONA Block solid odour neutralisers, available in various scents like Fresh Linen (/products/ona-block-fresh-linen-170-g), Polar Crystal (/products/ona-block-polar-crystal-170-g), Lemon Grass (/products/ona-block-lemon-grass-170-g), and Apple Crumble (/products/ona-block-apple-crumble-170-g), designed for passive diffusion or use with ONA Block Dispensers and ONA Breeze Fans for enhanced dispersion up to 160 m². For active vapourisation, ONA Liquid is available in large volumes like 3.27L (/products/ona-liquid-polar-crystal-327-l, /products/ona-liquid-fruit-fusion-327-l, /products/ona-liquid-fresh-linen-327-l, /products/ona-liquid-tropics-327-l) and 922ml (/products/ona-liquid-polar-crystal-922-ml, /products/ona-liquid-fresh-linen-922-ml, /products/ona-liquid-lemon-grass-922-ml, /products/ona-liquid-pro-922-ml, /products/ona-liquid-tropics-922-ml, /products/ona-liquid-fruit-fusion-922-ml), along with a massive 20L option (/products/ona-liquid-polar-crystal-20-l) for industrial use. ONA Gel provides a semi-solid option in sizes from 500ml (/products/ona-gel-pro-500-ml, /products/ona-gel-polar-crystal-500-ml, /products/ona-gel-apple-crumble-500-ml, /products/ona-gel-fruit-fusion-500-ml, /products/ona-gel-lemon-grass-500-ml, /products/ona-gel-polar-crystal-1-l, /products/ona-gel-fresh-linen-500-ml) to 1L (/products/ona-gel-fruit-fusion-1-l, /products/ona-gel-pro-1-l, /products/ona-gel-lemon-grass-1-l, /products/ona-gel-apple-crumble-1-l) and 4L (/products/ona-gel-apple-crumble-4-l, /products/ona-gel-polar-crystal-4-l, /products/ona-gel-lemon-grass-4-l, /products/ona-gel-fruit-fusion-4-l), with scents like PRO, Fruit Fusion, Apple Crumble, Polar Crystal, Lemon Grass, Tropics, and Fresh Linen. Additionally, ONA Spray products, such as the PRO (/products/ona-spray-pro-250-ml), Fruit Fusion (/products/ona-spray-fruit-fusion-250-ml), Apple Crumble (/products/ona-spray-apple-crumble-250-ml), Lemon Grass (/products/ona-spray-lemon-grass-250-ml), Fresh Linen (/products/ona-spray-fresh-linen-250-ml), and Tropics (/products/ona-spray-tropics-250-ml) variants, offer instant odour neutralisation. For ventilation systems, ONA provides ONA Odour Control Ducting in various sizes from 100mm (/products/ona-odour-control-duct-100-mm) to 315mm (/products/ona-odour-control-duct-315-mm). The ONA Příslušenství range includes the ONA Misting Dome and ONA AutoMist Odour Diffusers (/products/ona-automist-odour-diffuser-black-rozprasovac), providing automated dispersal solutions.
Unlike passive air fresheners that merely mask odours, ONA products actively neutralise odour molecules through a natural formulation. This ensures that smells are eliminated at their source, rather than being temporarily covered up. The range of ONA products, from solid blocks to liquids and sprays, offers a versatility that generic odour neutralisers often lack, providing tailored solutions for different environments and intensity levels.
For persistent and strong grow room odours, consider the ONA Liquid range in larger formats such as 3.27L (/products/ona-liquid-polar-crystal-327-l, /products/ona-liquid-fruit-fusion-327-l, /products/ona-liquid-fresh-linen-327-l, /products/ona-liquid-tropics-327-l) or 20L (/products/ona-liquid-polar-crystal-20-l) for continuous application, particularly when used with an automated diffuser like the ONA AutoMist Odour Diffuser (/products/ona-automist-odour-diffuser-black-rozprasovac). Alternatively, ONA Blocks (/collections/ona-block) can be placed strategically or used with a fan-powered ONA Block Dispenser (/products/ona-block-dispenser-rozprasovac-na-ona-block) to enhance dispersal, especially within ducting. For immediate, targeted odour elimination, ONA Sprays (/collections/ona-spray) are highly effective. Growers using coco, soil, or rockwool media who experience moderate odours might find ONA Gel (/collections/ona-gel) in sizes like 1L or 4L (/products/ona-gel-fruit-fusion-1-l, /products/ona-gel-pro-1-l, /products/ona-gel-lemon-grass-1-l, /products/ona-gel-apple-crumble-4-l, /products/ona-gel-polar-crystal-4-l, /products/ona-gel-lemon-grass-4-l, /products/ona-gel-fruit-fusion-4-l) to be a cost-effective and long-lasting solution throughout the vegetative and flowering stages.
ONA Gel provides a consistent vapour release for continuous odour neutralisation in a semi-solid form, typically lasting around 4 weeks, while ONA Block is a solid that releases its scent through evaporation or with the aid of a fan for more active dispersion.
Yes, ONA products are formulated with natural essential oils and are designed to be safe for use around people, plants, and pets when used as directed.
For ventilation systems, ONA Odour Control Ducting ([10]) attachments are specifically designed to work with ONA Blocks or other ONA products to neutralise odours as air passes through. The size of the ducting attachment should match your ventilation setup, ranging from 100mm ([39]) to 315mm ([41]).
ONA Blocks and Gels are generally effective for approximately 4 weeks, though this can vary based on environmental conditions such as temperature and airflow. ONA Sprays offer immediate neutralisation and last as long as the spray is applied.