Deodorizing apparatus, not for personal use, namely, chemical air deodorizing diffusers, not being parts of machines, for use in deodorizing noxious fumes generated by sewage treatment plants, pumping stations, lifting stations, waste collection vehicles, waste stocking and sorting plants, waste treatment plants, agricultural facilities, industrial facilities, petrochemical facilities, oil refineries, oil tanks, oil tankers, asphalt plants, asphalt tanks, bituminous membrane plants, service s...