Potty Fresh Summer Plus portable restroom deodorant from Surco Portable Sanitation Products is designed to replace formaldehyde deodorants used in heat and humidity. It has two biocides, neither of which is formaldehyde, so it is eco-friendly and safe to use. It has a strong fragrance and deep blue nonstaining dye. Metazene neutralizes odor molecules in portable restroom tanks and ambient air. A choice of powerful fragrances freshen the surrounding air, minimizing customer complaints and callbacks. The nonstaining dye hides waste, paper and debris. 800/556-0111; www.surco.com.