Since 1995 ONA has been supplying odour neutralizers to the hydroponic industry. Due to how effective ONA products are they have withstood trends that have come and gone. ONA products are guaranteed to work, they come in a range of popular scents, PRO, Fresh Linen, Polar Crystal and Apple Crumble. The scientists who invented ONA have created a formulation that when used in an environment it not just masks odours but permanently removes them. ONA ensures their products are environmentally safe and do not include any toxic products. ONA products come in gel, block, liquid, spray card, spray & mist. The ONA block is the most popular of the range. For a bigger space the ONA breeze is designed to neutralize a room of up to 1,500 square feet. Perfect for any space including: indoor gardening, greenhouses, heating vents, hotel rooms, garbage areas, meat and fruit drying areas and many more. Due to its formulation it will get rid of both non-organic and organic odour.