Allows 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.

	Retail packaged with graphical instructions for use
	Air Filters for ventilation odour control
	Metal lid with rubber seal to ensure air tight
	Desired blocks inserted into mesh work metal tube within ducting (Sold seperately)
	Air blows through the filter & any odours will be removed