- Zerum Pro Neutral Gel is a solid air freshener designed to neutralize and eliminate bad odors in enclosed spaces - Its neutral fragrance does not add additional scents, ensuring a fresh and clean environment - The 400g format allows for prolonged and effective action in grow rooms, storage rooms, basements, kitchens, and bathrooms - Zerum Gel's advanced formula acts quickly, covering medium-sized spaces and eliminating odors of any kind - Eco-friendly product, free of toxins and safe for the environment - Easy to use: stir the gel in its container to maintain the release of the neutralizing agent - Ideal for placing on flat surfaces or in ventilation ducts for greater effectiveness