Your success or failure with an Ozonics boils down to these rules.
In a treestand
1- Attach the tree mounting screw provided so the Ozonics HR unit will be approximately 6 to 12 inches of the top of your head (while standing).
2- Once you've connected your Ozonics HR unit to the tree mount, ensure that it is facing downwind, that it is getting proper airflow and is pitched slightly downward at a (30 degree) angle, increase downward angle as wind speed increases.
3- If you smell ozone, other than from an occasional change in wind speed or direction, you are improperly set up. Determine the new wind direction and correctly position your Ozonics HR unit facing in the downwind direction. This is known as "chasing the wind". With an Ozonics HR unit always chase the wind.
In a blind
1- Determine the dominant wind direction. To control airflow in your blind, slightly open a window on the downwind side of blind to create an exit for your scent. Attach ground blind mounting bracket to point closest to the newly created opening. Connect the Ozonics HR unit to the bracket so that the generator's outlet will be positioned as close as possible to the opening in the blind aimed toward the downwind ventilation. The goal is to hyper-ozonate human scent as it leaves the blind through this single location.
2- Do not direct the ozone at any occupant of the blind. Ozone is slightly heavier than ambient air and in the absence of airflow can pool in low areas and create an excess of ozone.
3- Turn the Ozonics HR unit and run on Standard Mode. Do not operate your Ozonics HR unit in Boost mode in a blind.
4- If you smell ozone, other than from an occasional change in wind speed or direction, you are improperly set up and you need to rethink your airflow plan. First, determine new wind direction as it may have changed. Then think about how a chimney and flue operate. You want the smoke (your scent) to exit through the chimney (the downwind hole you created) where it can be destroyed by the ozone from your Ozonics HR unit and not flow back into your living room (the area you are hunting) with being treated.