Just read this and thought it was interesting. May be the reason why some car manufacturers provide an "Open all windows" button on your car remote.
Car Air-conditioning - Very Important!!!!
No wonder more folks are dying from cancer than ever before. We wonder
where this stuff comes from but here is an example that explains a lot of
the cancer causing incidents. Many people are in their cars first thing in
the morning and the last thing at night, 7 days a week.
Question: My car book says to roll down the windows to let out all the hot
air before turning on A/C. Why is that? I have heard that it is very
important to do that for health reasons!
Answer: Car A/C (Air Conditioning) MUST READ!!!
Please do NOT turn on A/C as soon as you enter the car. Open the windows
after you enter your car and then turn ON the AC after a couple of minutes.
Here's why:
According to research, the car dashboard, seats, air freshener emit
Benzene, a Cancer causing toxin (carcinogen - take time to observe the
smell of heated plastic in your car). In addition to causing cancer,
Benzene poisons your bones, causes anaemia and reduces white blood cells.
Prolonged exposure will cause Leukaemia, increasing the risk of cancer and
also cause miscarriage.
Acceptable Benzene level indoors is 50mg per sq.ft. A car parked indoors
with windows closed will contain 400-800 mg of Benzene.
If parked outdoors under the sun at a temperature above 60 degrees F, the
Benzene level goes up to 2000-4000 mg, 40 times the acceptable level.
People who get into the car, keeping windows closed will inevitably inhale,
in quick succession, excessive amounts of the toxin. Benzene is a toxin
that affects your kidney and liver. What's worse, it is extremely
difficult for your body to expel this toxic stuff.
So friends, please open the windows and door of your car - give time for
interior to air out -dispel the deadly stuff - before you enter.