The ONA Block is a small quiet workhorse when it comes to odour control. Put it anywhere and unwanted smells will be taken out the air. A small block packed with natural essential oils that are released in a timely manner, neutralising and destroying any airborne odours.  

• ONA Block – Odour neutraliser in solid form.
• Ideal for small enclosed spaces.
• Permanently removes unwanted odours from the air.
• Not a masking agent, but a genuine odour neutralisater.
• Safe to use around people, pets and plants.
• ONA Blocks can be used in conjunction with ONA Air Filters to neutralise odours in your ducting.