Studies have found a link between the disease and some chemical products.

VOA: special.2009.04.07

Chemical sprays like air fresheners,hair spray, household cleaning products and even strong perfumes can also trigger an asthma attack.

VOA: special.2009.07.28

Chemical sprays like air fresheners, hair spray,cleaning products and even strong beauty aids can trigger an asthma attack.

VOA: special.2010.09.07

Nicotine replacement products provide the body with small amounts of the chemical through forms other than cigarettes.

VOA: special.2010.03.09

Glyphosate is a chemical used in Round-Up and other weed killing products.

VOA: special.2010.04.27