Ona Block Pro

‘Natural odour control’

An updated mix of essential oils and perfumes, the Ona Block Pro offers you effective and inexpensive, yet natural odour control.

The Ona Neutralising Block also:

• Eliminates odours rather than masking them. 
• Kills airborne germs. 
• Inhibits the growth of bacteria. 
• Is effective for at least 15-30 days.

Easy to use, remove the Ona Block Pro from the container and place in your grow room where the odour is.

Hint - The Ona Neutralising Block works for up to 30 days, dependent on airflow and ambient temperatures. To prolong the life and reduce the strength of the block, poke holes in the cover and replace on the container.