Mine Ventilation Services, Inc.

http://www.mvsengineering.com/

Ilyich Iron and Steel of Mariupol - Ukraine
steel , manufacturer, shipbuilding, metal, metall, metalloprokat, iron , pig , hot rolled plate , cold rolled plate, tube, flask, ferroalloys , solar module - Iron & Steel Works of Mariupol name Ilyich
http://www.ilyich.com.ua

Tony Redgwick Pattress Plates
Redgwick supply traditional wall tie patress plates.
http://www.redgwick.co.uk/

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

Ken's Rings
Ken Dauzat's Web Site. Telescopes, Rings, and Things
http://www.kendauzat.net/

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

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/

Infography about Mine Ventilation
Sources recommended by a professor whose research specialty is mine ventilation.
http://www.infography.com/content/994105170943.html