i wanted to contest that recently i had an odor problem. over 15 females, half in their final weeks of flowering-is pretty smelly. NEWAY! my friend told me about ' odor neutralising gel'. This provoked a trip to Lowes and i found a product that last for '90 days' in a 400sqft area for $10.99! Its called, Natural Magic. I picked up 2, placed one in my living room and one downstairs in the large space where i stay at adjacent to my grow room which has the door OPEN. After 8 hrs, i barely smelled a thing, and i invited a close friend over who knows i grow and he didnt smell anything til he stepped INTO my grow room!!! Highly recommend ODOR neutralising gels for your home-THEY WORK.