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Although homes are built tightly sealed in order to keep out various weather and keep warm or cool air inside, sometimes the air in a house can become dirty, stale, or polluted. Ventilation systems are important for keeping uncomfortable odors and often harmful or dangerous pollutants that can become trapped in your home. Cycling out and cleaning the air in your home is important in maintaining a healthy living environment while still protecting you from extreme cold or heat. Ventilation systems expel the bad air, and replace it with the good stuff: clean, fresh air that you want to live and breathe.
Without a proper ventilation system, when your heater or cooler runs, the same air is being circulated and pumped throughout your home. This means that odors from children, pets, cooking, and other odors are trapped inside and linger. Problems can arise, especially with the air that can be circulated from cooking and the gases released from stoves. Harman and toxic chemicals and gases that are released will remain in the air if they are not properly ventilated. According to the Environmental Protection Agency (EPA), the concentration of pollutants can be up to 10 times greater inside your home than outside.
Common household contaminants found even in the best-kept homes include:
Certain features of ventilation systems include motorized dampers, which control the amount of outdoor air entering your home. This is so that the ventilation system is never allowing more than what's needed, while also making sure the air coming into your home is never too humid, too hot, or too cold.
There are different types of ventilation:
Mechanical or forced ventilation: comes through a specific air handling unit or a fan.
Natural ventilation: achieved without the use of mechanical systems, like a fan or specific air handling unit. Windows and doors are two types of natural ventilation systems, as when they open they can let air out and also take new, fresh air in.
aMixed mode ventilation or hybrid ventilation: mixes both mechanical ventilation processes and natural ventilation processes.
Some of the benefits of natural ventilation include:
Increased worker productivity
Because of air conditioning, natural ventilation systems are becoming more and more infrequent, although most old buildings utilize the natural ventilation systems.
If you’re looking to conserve energy, you can use a type of ventilation called Demand-controlled ventilation, or DCV. This allows you to ventilate while maintaining air quality and also conserving energy at the same time. Carbon dioxide detectors in this ventilation system will be controlled by sensors.
It is important to clean and keep up maintenance on your ventilation systems. It is also especially important to monitor water vapor, because if it accumulates, it can damage the insulation, the structure, and the finishes of your ventilation system machine. This will hinder your system from keeping your air fresh.