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Natural Ventilation Doesn’t Keep Your Air Clean

Sep. 12, 2013
Do you get enough fresh, clean air in your home?  If you’re only relying on opening windows every now and again, and natural leakage through your home’s shell, you probably don’t have enough. 

Many homeowners think that they don’t need any kind of mechanical air improvement such as air purifiers, UV lights, or air cleaners if they leave their home unsealed or open the windows as often as they can.  However, they may be doing more harm than good to their indoor air.

Natural Ventilation

Opening windows and counting on air leakage into and out of your home is called “natural ventilation” and isn’t as reliable as you think to bring in adequate amounts of clean air or to exhaust polluted indoor air. 

In today’s homes, highly efficient heating and cooling systems keep our indoor environment comfortable.  Many of us spend 90% or more of our day indoors with the windows closed, especially during extreme weather. Those closed windows give us privacy, security, and noise reduction.  They also keep out dust, pollen and other forms of outdoor pollution. 

What those closed windows also do, however, is trap the indoor air pollution.  Since the windows are kept closed, there is nowhere for it to go. This is the reason indoor air can be up to five times as polluted as outdoor air. 

The main problem with relying on natural ventilation is that of control.  It’s extremely difficult to ensure that a constant supply of clean air is entering your home and that it’s being distributed where you would want it to go, such as the bedrooms. Since wind is constantly changing the amount of air it’s blowing into your home, the amount of fresh air is constantly changing.  On windy days there may actually be too much ventilation, and on calm days there probably won’t be enough. You’re also at the mercy of the wind’s direction to determine where air will come into the house and where it will exit.

 Mechanical Ventilation

So if you can’t rely on natural ventilation, what should you rely on to keep your indoor air clean? There are mechanical air cleaners that allow you to have the comfort you like as well as good indoor air quality:
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Thornton & Grooms
24565 Hallwood Ct
Farmington Hills, MI 48335
(248) 644-7810
MI Plumbing Lic. #: 8106666
MI Contractors Lic. #: 7100232
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