What’s the leading cause of accidental poisoning deaths in the U.S.?

Carbon monoxide according to the Journal of the American Medical Association. Yet while 93% of U.S. homes have smoke alarms, the Consumer Product Safety Commission estimates that only 15% have carbon monoxide alarms.

Such alarms are vital because carbon monoxide is virtually invisible to us. It is a flammable, colorless, odorless and tasteless toxic gas.

You can’t see or smell carbon monoxide, but at high levels it can kill a person in minutes.
- Low levels of carbon monoxide poisoning are mistaken for flu or cold symptoms - shortness of breath on mild exertion, mild headaches, nausea.

- Higher levels cause dizziness, mental confusion, severe headaches, nausea, fainting on mild exertion. Very high levels lead to unconsciousness and death.

Avoid dangerous CO levels in your home:

• Install a battery-operated CO detector/alarm in your home and check or replace the battery when you check your smoke alarms and change the time on your clocks each spring and fall. Mount the detector/alarm on the ceiling at each level in your home.

• If you are suffering from continuing, chronic flu-like symptoms, see your doctor and ask her if it could be a low-level CO poisoning.

• If you have a CO detector, and it alarms, immediately open windows and ventilate your home with fresh air, have your heating system checked by a professional.

• Be sure that CO is not escaping from any fuel-burning appliance (furnace, water heater, fireplace, woodstove, or space heater.)

• Do not block or seal shut exhaust flues or ducts for appliances such as water heaters, ranges, and clothes dryers.

• If you live in a newer home, it is probably built to be very air-tight. Thus it cuts down on the supply of fresh air to your furnace, creating an oxygen starved flame. As well, tight closing replacement windows and doors, as well as additional insulation can cause similar “air-tight” problems in older homes.

• Be sure your flues that are connected to new high-efficiency furnaces and water heaters are sized right. If not, they can cause CO spillage.

• Also many new furnaces and water heaters are installed using the existing chimneys that may be the wrong size to allow the furnace to vent properly.

• Carbon monoxide can spill into the home from vent connections in poorly maintained or blocked chimneys. If the flue liner is cracked or deteriorated, CO can seep inside through the liner, slowly creeping up to dangerous levels. If a nest or other materials restrict or block the flue, CO will mostly spill back into the house.

• Never warm up vehicles in a garage attached to your home, even when your garage door is open. Do not operate other gasoline-powered engines in confined areas such your garage or basement.

Do not leave your car, mower, or other vehicle running in an attached garage, even with the door open.
You may be allowing concentrated amounts of CO to enter your home through the garage door or near-by windows.

• Get an EAC (electronic air cleaner) that attaches to your existing HVAC system, one that is sufficiently efficient to eliminate harmful levels of CO in your home.

Safer, Cheaper Ways to Clean Your Home

Pollutants inside your home can be from two to more than 100 times higher than outdoors, according to the U.S. EPA. Big culprits are the volatile organic compounds (VOCs) that evaporate, or "offgas," from home decorating and cleaning products.

One problem are so-called air fresheners. In homes where aerosol sprays and air fresheners were used frequently, mothers experienced 25 percent more headaches and were 19 percent more likely to suffer from depression, and infants under six months of age had 30 percent more ear infections and 22 percent higher incidence of diarrhea, according to a study published in New Scientist.

Beware when you shop for somethingsafer. "Just because a product says it's natural doesn't mean it's nontoxic," says Jeffrey Hollender, CEO of Seventh Generation. I am a fan of his company’s eco-friendly cleaning supplies and household products. Hollender advises that the word "natural" is undefined and unregulated by the government and can be applied to just about anything under the sun -- including plastic, which comes from naturally occurring petroleum.

Because no standards exist, claims such as "nontoxic," "eco-safe," and "environmentally friendly" are also meaningless, according to Consumers Reports' Eco-labels.

David Steinman, co-author of The Safe Shopper's Bible, recommends looking at labels for specific, eco-friendly ingredients that also perform effectively. These include grain alcohol instead of toxic butyl cellosolve as a solvent; coconut or other plant oils rather than petroleum in detergents; and plant-oil disinfectants such as eucalyptus, rosemary, or sage, rather than triclosan.

Or mix your own cleaners, as does Annie Berthold-Bond, green living editor at Care2.com and author of Clean and Green and Better Basics for the Home.