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  ASTHMA TRIGGERS & INDOOR ALLERGENS  
     
With over 5,000 asthma related deaths reported in the U.S. each year - most of which are children - periodic testing of your indoor environments for asthma and allergen triggers is prudent.

The following information is provided to bring greater awareness to the invisible world of deadly airborne micro-particles that can cause asthma and trigger attacks.

For more information on testing your home or workplace for
indoor asthma and allergens, call AMI today at 1-800-369-8532.


 
  Most Americans spend up to 90% of their time indoors. We like to think of our homes, schools, and workplaces as safe, but just how safe are they?


Since indoor allergens can play a significant role in triggering asthma attacks it is important to recognize potential asthma triggers indoors and reduce your exposure to those triggers. With today's technology, indoor environments can be tested for asthma triggers and allergens quickly and affordably.

 

Common Indoor Asthma Triggers and Allergens
Some of the most common indoor asthma triggers include secondhand smoke, dust mites, mold, cockroaches and other pests, household pets, and combustion byproducts. You may not be affected by all of these triggers. However, your doctor can help you to determine which triggers affect your asthma or may lead to you developing asthma and help you develop a customized asthma management plan.
 

Dust Mites
Dust Mites are too small to be seen, but can be found in almost every home in mattresses and bedding materials, carpets, upholstered furniture, stuffed toys and curtains.

What are Dust Mites?
Dust mites are tiny insects that are invisible to the naked eye. Every home has dust mites. They feed on human skin flakes and are found in pillows, mattresses, carpets, upholstered furniture, bedcovers, clothes, stuffed toys and fabric and fabric-covered items. Body parts and feces from dust mites can trigger asthma in individuals with allergic reactions to dust mites, and exposure to dust mites can cause asthma in children who have not previously exhibited asthma symptoms.

Actions You Can Take

  • Cover mattresses and pillows with dust proof ("allergen-impermeable") zippered covers.
     
  • Wash bedding (sheets, blankets and bedcovers) once per week in hot water.
     
  • Choose washable stuffed toys, wash them often in hot water and dry them thoroughly.
     
  • Keep stuffed toys off beds.
     
  • Maintain low indoor humidity, ideally between 30-50% relative humidity.
     
  • Humidity levels can be measured by hygrometers which are available at local hardware stores.
     
  • If you are purchasing a home it is strongly recommended that you have the home tested for the presence of dust mite allergens (Der p I and Der f I)

Common house dust may contain asthma triggers. When you are treating your house for dust mites, try these simple steps as well.

  • Remove dust often with a damp cloth.
     
  • Vacuum carpet and fabric-covered furniture to reduce dust build-up.
     
  • Using vacuums with high efficiency filters or central vacuums may be helpful.
     
  • People with asthma or allergies should leave the area being vacuumed.

 

 
 
Molds

Indoor mold growth is one of the leading and most debilitating causes of asthma attacks.

What are Molds?
Molds are microscopic fungi that live on plant and animal matter. Molds can be found almost anywhere; they grow on virtually any substance when moisture is present.

Molds produce tiny spores to reproduce, just as plants produce seeds. Mold spores waft through the indoor and outdoor air continually. When mold spores land on a damp spot indoors, they may begin growing and digesting whatever they are growing on in order to survive. Some molds can grow on wood, paper, carpet, foods and even dynamite.

There is no practical way to eliminate all molds indoors; the way to control indoor mold growth is to control moisture.

How Does Mold Affect Asthma?
For people sensitive to molds, inhaling mold spores can cause an asthma attack, there is new evidence that indicates exposure to high levels of indoor molds can actually cause children to develop asthma.

Actions You Can Take

  • If mold is a problem in your home, you need to clean up the mold and eliminate sources of moisture.
     
  • Wash mold off hard surfaces and dry completely. Absorbent materials, such as ceiling tiles and carpet, may have to be replaced if they are contaminated with mold.
     
  • Fix leaky plumbing or other sources of water.
     
  • Keep drip pans in your air conditioner, refrigerator and dehumidifier clean and dry.
     
  • Use exhaust fans or open windows in kitchens and bathrooms when showering, cooking or using the dishwasher.
     
  • Vent clothes dryers to the outside.
     
  • If you are purchasing a home, or suspect that mold may be present at high levels in your home, it may be prudent to have your home inspected and tested.
     
  • Maintain low indoor humidity, ideally between 30-50% relative humidity. Humidity levels can be measured by hygrometers, which are available at local hardware stores.

 

 
 
Cockroaches

Droppings and body parts of cockroaches and other pests can trigger asthma. Certain proteins, called allergens, are found in cockroach feces and saliva and can cause allergic reactions, or trigger asthma symptoms, in some individuals. Cockroaches are commonly found in crowded cities and the southern regions of the United States. Cockroach allergens likely play a significant role in asthma in many inner-city areas.

Actions You Can Take
An important key to pest management is to remove places in your home for pests to hide and to keep exposed areas free of food and water. But remember, pesticides you may spray to prevent pests are not only toxic to pests, they can harm people too. Try to use pest management methods that pose less of a risk.

Tips to prevent pests:

  • Do not leave food or garbage out.
     
  • If you are purchasing a home it is strongly recommended that you have the home tested for the presence of cockroach allergens (Blag I)
     
  • Store food in airtight containers.
     
  • Clean all food crumbs or spilled liquids right away.
     
  • Wash dishes as soon as you are done using them.
     
  • Keep counters, sinks, tables and floors clean and clear of clutter.
     
  • Fix plumbing leaks and other moisture problems.
     
  • Seal cracks or openings around or inside cabinets.
     
  • Remove piles of boxes, newspapers and other hiding places for pests from your home.

    Make sure trash is stored in containers with lids that close securely, and remove trash daily.

    Try using poison baits, boric acid or traps first before using pesticide sprays.

    If sprays are used:
    Limit the spray to the infested area.

    Do not spray where you prepare or store food, or where young children play, crawl or sleep.

    Carefully follow instructions on the label.

    Make sure there is plenty of fresh air when you spray and keep people with asthma out of the room while spraying.

    After spraying, the room should be thoroughly aired out.
     
 
 
Domestic Animals

Warm-Blooded Pets (such as cats and dogs) skin flakes, urine and saliva can be found in homes where pets are allowed inside.

About Pets and Asthma
Your pet's dead skin flakes, urine, feces, saliva and hair can trigger asthma. Dogs, cats, rodents (including hamsters and guinea pigs) and other mammals can trigger asthma in individuals with an allergic reaction to animal dander. Proteins in the dander, urine or saliva of warm-blooded animals (e.g., cats, dogs, mice, rats, gerbils, birds, etc.) have been reported to sensitize individuals and cause allergic reactions or trigger asthma episodes in individuals sensitive to animal allergens.

The most effective method to control animal allergens in the home is to not allow animals in the home. If you remove an animal from the home, it is important to clean the home (including floors and walls, but especially carpets and upholstered furniture) thoroughly.

Pet allergen levels are reported to stay in the home for several months after the pet is removed even with cleaning. Isolation methods to reduce animal allergen in the home have also been suggested by reputable health authorities (e.g., keeping the animal in only one area of the home, keeping the animal outside or ensuring that people with allergies or asthma stay away from the animal) but the effectiveness of these methods has not been determined. Several reports in the literature indicate that animal allergen is carried in the air and by residents of the home on their clothing to all parts of the home, even when the animal is isolated. In fact, animal allergen is often detected in locations where no animals were housed.

Often, people sensitive to animal allergens are advised to wash their pets regularly. Recent research indicates that washing pets may only provide temporary reductions in allergen levels. There is no evidence that this short term reduction is effective in reducing symptoms and it has been suggested that during the washing of the animal the sensitive individual may be initially exposed to higher levels of allergens.

Thus, the most effective method to control exposure to animal allergens is to keep your home pet free. However, some individuals may find isolation measures to be sufficiently effective. Isolation measures that have been suggested include keeping pets out of the sleeping areas, keeping pets away from upholstered furniture, carpets, and stuffed toys, keeping the pet outdoors as much as possible and isolating sensitive individuals from the pet as much as possible.

Actions You Can Take

If pets are one of your asthma triggers, strongly consider finding a new home for your pets.

Keep pets out of the bedroom and other sleeping areas at all times and keep the door closed.

Keep pets away from fabric-covered furniture, carpets and stuffed toys.

Vacuum carpets, rugs and furniture two or more times per week.

If you are purchasing a resale home it is strongly recommended that you have the home tested for the presence of cat or dog allergens (Fel d I and Can f I)
 

 
 
Nitrogen Dioxide
Nitrogen Dioxide is an odorless gas that can be a byproduct of indoor fuel-burning appliances, such as gas stoves, gas or oil furnaces, fireplaces, wood stoves and unvented kerosene or gas space heaters.

What is Nitrogen Dioxide?
Nitrogen Dioxide (NO2) can be a byproduct of fuel-burning appliances, such as gas stoves, gas or oil furnaces, fireplaces, wood stoves and unvented kerosene or gas space heaters. NO2 is an odorless gas that can irritate your eyes, nose and throat and cause shortness of breath. In people with asthma, exposure to low levels of NO2 may cause increased bronchial reactivity and make young children more susceptible to respiratory infections. Long-term exposure to high levels of NO2 can lead to chronic bronchitis.

Actions You Can Take
  • Properly ventilate a room where a fuel-burning appliance is used and use appliances that vent to the outside whenever possible.
     
  • Do not idle the car inside your garage.
     
  • Have the entire heating system -- including furnace, flues and chimneys -- professionally inspected and cleaned annually.
     
  • Always open the flue on your fireplace before building a fire to ensure that smoke escapes through the chimney.
     
  • Make sure the doors are tight fitting on your wood-burning stove and follow the manufacturer's directions for starting, stoking and putting out the fire.
     
  • Follow the manufacturer's directions for proper fuel use on unvented kerosene or gas space heaters and keep the heater properly adjusted.
     
  • Open a window slightly or use an exhaust fan in the room while using the heater.
     
  • Install and use an exhaust fan over a gas stove and vent it outdoors.
 
 
Secondhand Smoke
What is Secondhand Smoke?
Secondhand smoke, also known as Environmental Tobacco Smoke (ETS), consists of exhaled smoke from smokers and side stream smoke from the burning end of a cigarette, cigar or pipe. Secondhand smoke contains more than 4,000 substances, including several compounds that are known carcinogens.

How Does Secondhand Smoke Affect Asthma?
Secondhand smoke can trigger asthma episodes and increase the severity of attacks. Secondhand smoke is also a risk factor for new cases of asthma in preschool aged children who have not already exhibited asthma symptoms. Scientists believe that secondhand smoke irritates the chronically inflamed bronchial passages of people with asthma. Secondhand smoke is linked to other health problems, including lung cancer, ear infections and other chronic respiratory illnesses, such as bronchitis and pneumonia.

Many of the health effects of secondhand smoke, including asthma, are most clearly seen in children because children are most vulnerable to its effects. Most likely, children's developing bodies make them more susceptible to secondhand smoke's effects and, due to their small size, they breathe more rapidly than adults thereby taking in more secondhand smoke. Children receiving high doses of secondhand smoke, such as those with smoking mothers, run the greatest relative risk of experiencing damaging health effects.

Actions You Can Take
  • Choose not to smoke in your home or car and don't allow others to do so.
     
  • Choose not to smoke in the presence of people with asthma.
     
  • Choose not to smoke in the presence of children, who are particularly susceptible to the harmful effects of secondhand smoke.
     
  • Do not allow baby-sitters, caregivers or others in your home to smoke in your house or near your children.
     
  • Take the Smoke-free Home Pledge and encourage others to do so.
     
  • Talk to your children's teachers and day care providers about keeping the places your children spend time smoke-free.

For more information on testing your home or workplace for indoor asthma and allergens, call AMI today at 1-800-369-8532.

 
 

INDOOR ENVIRONMENTAL
ASTHMA TRIGGERS

  • Dust Mites
  • Mold
  • Cockroaches & Pests
  • Pets & Domestic Animals
  • Nitrogen Dioxide
  • Secondhand Smoke


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