Ventilation A-1

Ventilation A-1 is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Duct Cleaning Heating Air Conditioning Etc
• Heating & Ventilating Contractors
• Ventilating Consultants

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Ventilating Contractors > Ventilating Consultants
• Plumbing, Heating, And Air-Conditioning Contractors > Heating Contractors
• Other Services To Buildings And Dwellings > Equipment Cleaning Services > Air Duct Cleaning

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Ventilating Contractors > Ventilating Consultants
• Plumbing, Heating And Air Conditioning > Heating Contractors
• Building Cleaning & Maintenance Services, Nec > Equipment Cleaning Services > Air Duct Cleaning