The ONA Block is small regarding odour control, you can put it anywhere, and unwanted odours will be taken out of the air.

ONA Block is a small block containing natural essential oils that are released, destroying and neutralising any smells.

• Air neutraliser in solid form.
• Ideal for small spaces.
• Permanently removes unwanted smells from the air.
• It is not a masking agent but a genuine odour neutraliser.
• Safe to use around pets, plants and people.
• ONA Blocks can be used with ONA Air Filters to neutralise odours in your ducting.