ONA Block

Ona odour control duct ONA odour controlled duct allow for the complete and continuous air filtration of your indoor gardens air exhaust. Just attach to your ventilation system, insert the desired number of ONA blocks, and any unwanted odours will be removed from your ducting, quickly effectively and permanently.

ONA Block Pro The ONA Block is ideal for small areas such as closets, foyers, attics, cars, gym bags, boats, kitchens, garbage cans, cupboards or vents. Simply remove the cap, or punch several small holes in the cap and place in desired location. The ONA Block measures 3″ x 3″ and will fit in most places. The ONA Block will release its powerful odor neutralizing agent and keep the location free fr…