Ventilation in relation to toxic and flammable gases in buildings.

Discusses toxic and flammable gases and vapours that lead to hazards in buildings. Examines trends in accidental deaths in the home in England and Wales from gas poisoning. Discusses influence of buoyancy on the dilution by ventilation air of accidental leaks of toxic and flammable gases and shows where buoyancy dominates layers can readily form. Presents theoretical results for controlling gas hazards in buildings by ventilation for a wide range of practical situations.

Impact of reduced infiltration and ventilation on indoor air quality

Notes that reduced infiltration and ventilation rates in buildings can lead to higher levels of indoor air pollution. Discusses three indoor-generated pollutants : nitrogen dioxide, formaldehyde and radon. Suggest ways of circumventing increased health risks without compromising energy conservation considerations, including setting standards for minimum levels, filtering recirculated air and sealing source material.

Ventilation, health and energy consumption: a status report.

U.S. ventilation systems have been reported to require as much as 50-60% of total energy consumed in buildings and have become popular targets for energy conservation methods. Notes serious concern that arbitrary changes to codes and standards are being proposed in the name of energy conservation which could jeopardise health, safety or welfare of building occupants. Traces evolution of ventilation codes and standards in us.Treats difficulties encountered with measurement and direct control of indoor air quality. Notes common guide values for air contamination used.

Draught free housing requires comprehensive solution of indoor climate problems. Lufttata hus pa ratt satt kraver helhetslosning av inomhusklimatet

Stresses importance of building draught-free housing to conserve energy. This poses problems for heating and ventilating engineer. Lists effects on microclimate. Explains interplay between freedom from draughts and ventilation. proposes a list of terms with definitions related to infiltration and draught prevention.

History of the changing concepts in ventilation requirements.

Outlines the development of current ideas of effective ventilation from early 19th century when official (U.S.) requirements were unduly high due to misconceptions in health requirements. Examines current requirement.

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