Surround Free from BonnetPro is an odorless super-concentrated encapsulant carpet cleaner. This volatile organic compound (VOC) free encapsulant effectively cleans sensitive environments with as little as two ounces per gallon. At three ounces per gallon, product coverage is an amazing 16,800 square feet per gallon of concentrate. Surround Free sets a new standard in economics and performance. Surround Free: A powerful encapsulant with no smell at all.