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Do modern houses have higher levels of indoor pollution because they are more fire resistant?
Wiki User
∙ 8y ago
No, it has to do with the fact that modern buildings are better insulated (for heating/cooling) and better sealed to prevent air leaks (which cause loss of hot/cold air to the outside). This reduces the number of air exchanges that happen per hour with the outside to bring in fresh air. With less fresh air the pollutants concentrate in the internal air.
Some HVAC systems partially correct this issue by using forced air heat exchanger systems that draw in outside air through a heat exchanger while exhausting inside air through the same heat exchanger so that the fresh outside air is warmed/cooled to the temperature of the inside air before being released inside and the dirty inside air is cooled/warmed to the temperature of the outside air before being exhausted outside. This helps but can add significant cost to the HVAC system and does not work in a power failure.
Wiki User
∙ 8y ago
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ENERGY-EFFICIENT just took the quiz (apex)
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