ONA Block Odour Neutraliser


Have you noticed unwanted smells in any of your small rooms or closets? Place the ONA Block Odour Neutraliser inside. It'll diffuse terpenes into the environment and eliminate odours with haste.

13,95 tax incl.
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Smell: Apple Crumble € 13,95
  • Smell: Apple Crumble € 13,95
  • Smell: Fresh Linen € 13,95
  • Smell: Polar Crystal € 13,95
  • Smell: PRO € 13,95
  • Smell: Tropics € 13,95
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List of all product combinations:
Smell: Apple Crumble € 13,95 In stock
Smell: Fresh Linen € 13,95 In stock
Smell: Polar Crystal € 13,95 In stock
Smell: PRO € 13,95 Out of stock
Smell: Tropics € 13,95 Out of stock
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ONA Block Odour Neutraliser: Eliminates Unwanted Smells Naturally

If you’re dealing with substantially smelly indoor spaces, the ONA Block Odour Neutraliser is the solution. It doesn’t just mask unwanted odours, it entirely neutralises them. The inventor created the block to eliminate suspicious aromas safely. It emits aromatic molecules that bind to odours, removing them from small rooms, closets, and tents.


The ONA Block Odour Neutraliser harnesses several compounds to banish lingering scents. The inventor found that terpenes—aromatic molecules found throughout the plant kingdom—have a profound ability to neutralise odours. He engineered a specific formula designed to smell-proof small areas.

Terpenes do more than just usher out smells. These volatile hydrocarbons increase the oxygen content in an area and boast antibacterial and antifungal properties. They’re capable of fighting airborne bacteria when diffused into the air.

Terpenes work across three mechanisms of action depending on the terpene in question and the molecules it’s up against. Some terps absorb other particles by pulling them in and temporarily binding to them. Others work by the principle of adsorption—they pull in odours and hold them on the surface of a solid. Different terpenes eliminate dank smells via chemical reactions. They bond permanently to other molecules and cancel out their stink.


The founder of ONA is an ex-firefighter, experienced at dealing with all manner of dangerous materials. During his career, he noticed that highly toxic chemicals were commonly being used to control odours. He wanted to fix this.

After some intense research, he realised terpenes were the solution. They are safe to use around people, pets, and plants, and cleanse the air in a non-toxic fashion. It’s not just the block that’s environmentally friendly, the recyclable packaging is too.


The ONA block tackles unwanted smells with speed and ease. All you have to do is open the lid and allow the terpenes to diffuse. If your odour problem is particularly bad, remove the block from its case entirely.

The block is available in five delicious scents: Apple Crumble, PRO, Fresh Linen, Polar Crystal, and Tropics.

ONA Block Odour Neutraliser data sheet
Type Other
Type Accessories

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Reviews (28)

    Ottimo odore
    Lo uso come deodorante in cucina, fa' il suo


    Sehr gutes Produkt
    Macht was es soll- Preis leicht hoc, jedoch angemessen zum Nutzen


    volgens mij vervallen
    Toen ik de pot open deed zag ik enkel een harde bruine massa en de geur was zeer minimaal ... na anderhalve week geopend in de ruimte die ik geurvrij wilde maken en er is enkel een scheur in de harde massa gekomen in de pot maar dat is dan ook alles, ik denk dus dat ik een vervallen (of uitgedroogd?) product heb ontvangen. Het heeft niet gewerkt om de geur ook maar iets te maskeren. Moet dit normaal gezien een soort gel zijn i.p.v. een harde massa? Ik ben zeer ontevreden over dit product en zou het dus ook niet meer aankopen.


    Ona block
    Ruikt heerlijk


    Funktioniert , angenehmer Geruch , nicht zu intensiv


    Bon produit
    Très efficace


    Fait carrément le taf, a facilement couvert l’odeur de 2 plans dans notre chambre


    Also der Geruch war echt lecker habe aber nicht wirklich bemerkt dass sich die Raumluft damit angereichert hat oder irgendwelche anderen Auswirkung wenn man dich dran ist riecht es ja gut aber würde ich jetzt nicht unbedingt weiterempfehlen


    Un allié qui fait bien le job
    Très agréablement surpris par ce produit, il camoufle à merveille les odeurs tenaces ou suspectes. Très convaincant !


    Its okay/good
    you can't expect that one block will neutralize the whole house. I bought one for the growroom and one for the hallway and you couldn't smell anything in the hallway so the stank won't alarm uninvolved noses. Altough you have to shake it or scrape off the outer layer from time to time to refresh the block else it won't work

    You cannot post a review because you have not purchased this product
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ONA Block Odour Neutraliser
ONA Block Odour Neutraliser