**Anchorage Asthma: Winter AC Stealing Kid Lungs?**
By Franklin Everett ShawThe biting Alaskan wind howls outside, a constant reminder of the frigid temperatures. But inside, the forced-air furnace roars to life, blasting warmth throughout the house. While that heat is welcome, could it be contributing to a less welcome guest: your child’s persistent cough and wheezing?
Anchorage families often rely on forced-air heating to combat the long, harsh winters. But this very system, designed for comfort, might inadvertently be exacerbating childhood asthma symptoms. Let’s explore this potential link and, more importantly, what you can do about it.
Forced-air heating systems, while efficient at distributing warmth, can also circulate dust, allergens, and other irritants throughout your home. These systems pull air from the house, heat it, and then push it back out through vents. This process can stir up particles that have settled on surfaces, including dust mites, pet dander, mold spores, and even remnants of past construction projects.
Consider the older homes common in Anchorage’s Turnagain neighborhood. Many of these houses have ductwork that hasn’t been thoroughly cleaned in years, acting as a breeding ground for allergens. Every time the furnace kicks on, it’s like a dust storm inside the ventilation system, sending these irritants into the air your children breathe.
The key culprit is often the furnace filter. A standard fiberglass filter, the kind you might pick up at Carrs-Safeway, is designed primarily to protect the furnace itself, not to purify the air. These filters have a very low Minimum Efficiency Reporting Value (MERV) rating, typically between 1 and 4. This means they only capture large particles, letting smaller, more harmful allergens pass right through.
A simple, yet effective upgrade is to switch to a pleated filter with a higher MERV rating. Look for filters with a MERV rating of 8 to 13. These filters are denser and can trap significantly more dust, pollen, pet dander, and even some mold spores. You can find these at most hardware stores in Anchorage, like Home Depot or Lowe’s.
Here’s a step-by-step guide to upgrading your furnace filter:
- Locate your furnace filter: It’s usually located in the furnace itself or in a return air vent.
- Determine the correct size: Check the existing filter for its dimensions (e.g., 16x25x1 inches).
- Purchase a pleated filter with a MERV rating of 8-13: Don’t go too high, as it can restrict airflow and damage your furnace.
- Turn off the furnace: This is crucial for safety.
- Remove the old filter: Note the direction of the airflow arrow on the filter frame.
- Insert the new filter: Make sure the airflow arrow points in the same direction as before.
- Turn the furnace back on.
- Set a reminder to change the filter every 1-3 months: Depending on the filter type and the air quality in your home.
Another factor to consider is humidity. Anchorage winters are notoriously dry. Forced-air heating further reduces indoor humidity levels, which can irritate the respiratory system and make asthma symptoms worse. Dry air can cause the airways to become inflamed and more susceptible to allergens and irritants.
Investing in a humidifier can make a significant difference. A whole-house humidifier, integrated into your HVAC system, is the most effective solution, but a portable humidifier can also help, especially in bedrooms. Aim for a humidity level between 30% and 50%. You can monitor humidity levels with a simple hygrometer, available at most hardware stores.
However, be cautious about over-humidifying. Excessive humidity can promote mold growth, which is another asthma trigger. Regularly clean your humidifier to prevent the buildup of mold and bacteria.
Beyond filtration and humidity, consider other sources of indoor air pollution. Fireplaces, while cozy, can release smoke and particulate matter into the air. Ensure your fireplace is properly ventilated and consider using a HEPA air purifier in the room.
Pet dander is another common allergen. Regular vacuuming with a HEPA filter vacuum cleaner can help reduce pet dander levels. Focus on areas where your pets spend the most time, such as carpets, rugs, and furniture.
For Anchorage families struggling with childhood asthma, several local resources are available. The Alaska Native Medical Center (ANMC) offers comprehensive pediatric pulmonary services. Providence Alaska Medical Center also has pediatric pulmonologists on staff.
Additionally, consider joining a local asthma support group. These groups provide a valuable opportunity to connect with other parents, share experiences, and learn coping strategies. The American Lung Association in Alaska can provide information on local support groups and educational programs.
Don’t underestimate the importance of advocating for improved air quality in Alaskan schools. Many schools in Anchorage have aging HVAC systems that may not be adequately filtering the air. Contact your school board representatives and advocate for upgrades to HVAC systems and the implementation of air quality monitoring programs.
You can also encourage your children’s school to adopt a “fragrance-free” policy to reduce exposure to perfumes, colognes, and other scented products that can trigger asthma symptoms.
One common mistake Anchorage residents make is neglecting to properly seal windows and doors. Drafts can bring in cold air and outdoor pollutants, forcing the furnace to work harder and circulating more air. Use weather stripping and caulk to seal any gaps or cracks around windows and doors.
Another pitfall is relying solely on over-the-counter medications to manage asthma symptoms. While these medications can provide temporary relief, they don’t address the underlying causes of asthma. Work with your child’s doctor to develop a comprehensive asthma management plan that includes medication, environmental control measures, and regular monitoring.
Remember, managing childhood asthma in Anchorage’s unique climate requires a proactive approach. By understanding the potential link between forced-air heating and asthma symptoms, and by implementing these practical tips, you can create a healthier indoor environment for your children and help them breathe easier all winter long. Don’t just accept the status quo; take control of your indoor air quality and advocate for a healthier future for all Alaskan children.