FIT Ventilation
FIT Ventilation - Your source for affordable portable ventilation.
http://www.fitventilation.com

Smoking and Ventilation Standards
Americans for Nonsmokers' Rights (ANR) works to pass legislation at all levels of government to protect nonsmokers from secondhand smoke and protect youth from tobacco addiction. The American Nonsmokers' Rights Foundation (ANRF), ANR's educational arm, promotes smoking prevention and education about smoking, passive smoke, and the tobacco industry.
http://www.no-smoke.org/getthefacts.php?dp=d20

U.S. Products
Cooling, ventilation, dust proofing systems for control panel and drive motors; solutions for all your contamination, ventilation and cooling needs.
http://www.usprod.com/

Mine Ventilation Services, Inc.

http://www.mvsengineering.com/

Food Industry Technical Ltd
Food Industry Technical are leading specialists in energy saving ventilation systems for commercial kitchens
http://www.foodindustrytechnical.com

Zephyr Ventilation Hoods
Manufacturer of residential hoods and ventilation systems.
http://www.zephyronline.com/

Schaefer Ventilation
Ventilation and circulation fans for the greenhouse industry.
http://www.schaeferfan.com/Horticultural_Ventilation_C264.cfm

Vostermans Ventilation B.V.
Vostermans Companies is the parent company of a multinational enterprise, founded in 1952. Vostermans Ventilation B.V. Vostermans Alu Foundries B.V. Vostermans Tooling and Prototyping B.V.
http://www.vostermans.com

Penmann Climatic Systems Limited
Penmann Climatic Systems design and contract engineers with national coverage specialising in the production and installation of Product and Process Cooling, industrial refrigeration, air conditioning, ventilation and extraction systems.
http://www.penmann.co.uk

FireFan Systems
FireFan Systems - with offices in Maryland and Florida - provides ventilation systems including portable fans, diesel fans, and custom ventilation to clients throughout the U.S.
http://www.firefansystems.com