equipment leasing and rental services in the field of air purification, decontamination, deodorizing, management and processing; cleaning services in the field of air purification, decontamination, deodorizing, management and processing, namely, air duct and air conditioning apparatus cleaning services

air purification units, air decontamination units in the nature of air cleaning units, air deodorizing apparatus, air management and processing systems comprised of air purification units and air filtering installations

Equipment leasing and rental services in the field of air purification, decontamination, deodorizing, management and processing