ONA Block Odour Neutraliser

(125)

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.
In stock
Notify when back in stock:
You will be notified as soon as the product returns to stock
Buy 3 units 5% Discount

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
- +
List of all product combinations:
Smell: Apple Crumble
€ 13,95
In stock
Smell: Fresh Linen
€ 13,95
Out of stock
Smell: Polar Crystal
€ 13,95
In stock
Smell: PRO
€ 13,95
In stock
Smell: Tropics
€ 13,95
In stock
Prices exclude shipping, as rates vary by country. Find your shipping costs here.
Discreet Shipping
Discreet
Shipping
Fast Delivery
Fast
Delivery
Secure Payment
Secure
Payment
Track & Trace
Track &
Trace
  • More info
  • Reviews (125)
  • Questions (0)
  • Restrictions
  • Video (0)
More info

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.

IT’S SCIENCE, BABY!

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 ONA BLOCK IS SAFE AND NON-TOXIC

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.

HOW TO USE THE ONA BLOCK ODOUR NEUTRALISER

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 Accessories

More information related to this product:

Reviews (125)
    (125)
    22/Aug/2025

    Sens terriblement bon
    Juste un peu cher a mon goût ou mal utilisé de ma part... Ça reste un très bon produit A-L J

    A. J.
    17/Aug/2025

    Fresh Linen
    good one

    M. L.
    14/Aug/2025

    Werk niet erg goed in een tuinkas
    Misschien leuk om van nare geuren af te komen maar al bij 2 bloeiende planten is de wiet lucht het al te ruiken.

    K. V.
    12/Aug/2025

    Top
    Belle couverture

    S. P.
    02/Aug/2025

    Anti odeur
    Très bien pour couvrir les odeurs du quotidien et autres

    A. C.
    25/Jul/2025

    Sehr gut
    Da mein selfmade Growschrank im Wohnzimmer nicht richtig abdichtet und somit trotz Aktivkohlefilter ein markanter Geruch wahrnehmbar war, musste ich dem - auch um meine Freundin nicht all zu sehr zu verstimmen - Herr werden. Habe Ona Block PRO eingesetzt, als die Pflanzen schon in voller Blüte waren und neben den Schrank gestellt. Der Cannabisgeruch ist dadurch deutlich zurückgegangen und wurde durch einen dezenten, etwas seifigen aber nicht unangenehmen Geruch überdeckt. Auch meine Freundin hat das bestätigt und war positiv überrascht. Gänzlich unterdrückt wird der Cannabisgeruch aber nicht; subjektiv wird der Geruch um "80%" gemindert. Die Geruchsminderung hielt ca. 3 Wochen, danach war die Oberseite des Doseninhalts sichtbar ausgetrocknet. Danach das obere Drittel rausgekratzt, dann hielt es nochmal ~2 Wochen. Danach den Rest aus der Dose geholt und nochmal zerkleinert, schätze, dass das nochmal ~1 Woche bringt. So wie es hier auch in einem vorherigen Kommentar schon beschrieben wurde. Ich glaube, es wäre optimal, das Medium nicht in einer Dose, sondern in ggf. mehreren schmalen Pellets anzubieten, die man wochenweise austauscht. Grundsätzlich aber vollends zufrieden.

    M. J.
    22/Jul/2025

    Perfetto
    Anche se lo ho aperto solo un po’ ha profumato tutta la casa

    E. B.
    22/Jul/2025

    Nicht schlecht
    Kein Wundermittel aber hilft definitiv doch finde ich die Sorten außer Apple Crumple eher mäßig vom Geruch , die Pro Variante ist auch noch angenehm bringt aber wenig Effekt

    T. H.
    21/Jul/2025

    Fonctionne
    D’une aide précieuse…

    R. L.
    14/Jul/2025

    Nice to have
    Nice to have just in case

    D. D.
    You cannot post a review because you have not purchased this product
Questions (0)

No customer questions for the moment.

Ask a question
0/1000
Hide form
Restrictions

Please note: If your country is not on our approved shipping list, we’re unable to ship items to your region. For more information, check out the full list of approved locations here: Ordering & Shipping

Video (0)
There are no videos for this product yet.
ONA Block Odour Neutraliser
ONA Block Odour Neutraliser
icon_important-info
All products are intended for legal purposes only and are not for consumption or illegal use. Cannabis seeds are sold as souvenirs, and germination is illegal in many countries—please be informed before purchasing. By purchasing, you confirm that you have reached the age of majority and are aware of your local laws. Zamnesia is not liable for any actions taken in violation of these laws. All cannabis, hemp, mushroom-related, and other products are sold in strict compliance with applicable local regulations.
You’re visiting our International website.