Ona Block Polar Crystal Odour Neutralizer 170g/6oz
The ONA Block is ideal for masking unwanted odours.
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 from undesirable odors.
Replace as necessary.
Pro tip: Place product in the exhaust ducting not in the grow room environment, as Ona Gel will effect the smell/taste of your fruits/flowers.