**Albuquerque Allergies: AC Lies Hiding Summer Lungs?**

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
November 9, 2025

Don’t let your AC become an allergy factory this summer, Albuquerque! The desert heat forces us to crank up the air conditioning, but that cool relief can quickly turn into a breeding ground for allergens, making “summer lung” a real threat. Let’s dive into how you can keep your AC running efficiently and your air clean, all while saving money.

Albuquerque’s unique climate presents specific challenges. The dry air and frequent dust storms mean your AC unit works overtime, sucking in dust, pollen, and other irritants. This not only reduces efficiency but also creates a perfect environment for mold and bacteria to thrive, especially in the dark, damp recesses of your AC system.

First, let’s talk filters. Forget those cheap fiberglass filters; they’re practically useless against the fine dust particles common in Albuquerque. You need a filter with a Minimum Efficiency Reporting Value (MERV) rating of at least 11.

  • MERV 11 filters capture smaller particles like pollen, mold spores, and pet dander.
  • MERV 13 filters offer even better filtration, trapping some bacteria and virus carriers.

However, be careful going too high. A filter with a MERV rating above 13 can restrict airflow, making your AC work harder and potentially damaging the unit. Start with a MERV 11 and monitor your AC’s performance. If the airflow seems restricted, drop down to a MERV 8.

Change your filter at least every three months, but consider monthly changes during peak allergy season (spring and fall) or if you have pets. Set a reminder on your phone or calendar to ensure you don’t forget. A dirty filter is like trying to breathe through a clogged straw – it strains your system and reduces its effectiveness.

Next, humidity control is crucial. While Albuquerque is dry, AC units can still create pockets of moisture, especially if they’re not properly maintained. Mold thrives in humidity levels above 60%.

Invest in a hygrometer (a humidity monitor) to keep an eye on the humidity levels in your home. Aim for a range between 30% and 50%. If you’re consistently above 50%, consider a dehumidifier, especially in basements or other damp areas.

Run your AC’s fan on “auto” instead of “on.” Leaving the fan running constantly can recirculate moisture and dust, even when the AC isn’t actively cooling. The “auto” setting ensures the fan only runs when the AC is cooling, helping to prevent moisture buildup.

Now, let’s get our hands dirty with some DIY AC cleaning. This isn’t just about aesthetics; it’s about preventing allergen buildup and improving efficiency.

Step 1: Safety First! Turn off the power to your AC unit at the breaker box. This is non-negotiable.

Step 2: Clean the Outdoor Unit. The outdoor condenser unit is a magnet for dust, leaves, and debris. Use a garden hose (with a gentle spray nozzle) to rinse the fins from the inside out. Avoid using a pressure washer, as it can damage the delicate fins. Straighten any bent fins with a fin comb, available at most hardware stores.

Step 3: Clean the Evaporator Coils. This is where the air is cooled, and it’s also a prime spot for mold and bacteria growth. Access the evaporator coils (usually located inside the indoor unit) by removing the access panel. Use a coil cleaner specifically designed for AC units. Follow the instructions on the cleaner carefully.

Step 4: Clean the Drain Pan and Drain Line. A clogged drain line can lead to water damage and mold growth. Locate the drain pan (usually near the evaporator coils) and clean it with a mixture of bleach and water (1 part bleach to 10 parts water). Pour the mixture down the drain line to flush out any clogs. You can also use a wet/dry vacuum to suck out any debris.

Step 5: Reassemble and Test. Once everything is clean and dry, reassemble the AC unit and turn the power back on. Monitor the unit for any unusual noises or smells.

What about diagnosing “summer lung?” This isn’t a formal medical term, but it describes a collection of respiratory symptoms triggered by indoor allergens, particularly those associated with AC use.

Common symptoms include:

  • Coughing
  • Wheezing
  • Shortness of breath
  • Chest tightness
  • Runny nose
  • Watery eyes
  • Fatigue

If you experience these symptoms primarily when your AC is running, suspect AC-related allergens.

Here’s a step-by-step approach:

  1. Track Your Symptoms: Keep a log of when your symptoms occur and how severe they are. Note whether they improve when you leave your home or turn off the AC.
  2. Inspect Your AC: Check for visible mold growth, dust buildup, and unusual odors.
  3. Improve Filtration: Upgrade your air filter to a higher MERV rating (within the recommended range for your unit).
  4. Deep Clean Your AC: Follow the DIY cleaning steps outlined above.
  5. Consider Professional Cleaning: If your symptoms persist, consider hiring a professional AC cleaning service. They have specialized equipment and knowledge to thoroughly clean and disinfect your AC system.
  6. Consult a Doctor: If your symptoms are severe or persistent, consult a doctor to rule out other potential causes and discuss treatment options.

Affordable solutions are key. You don’t need to break the bank to improve your indoor air quality.

  • DIY Cleaning: The cost of coil cleaner and a fin comb is minimal compared to professional cleaning services.
  • Filter Subscription: Sign up for a filter subscription service to ensure you always have clean filters on hand.
  • Smart Thermostat: A smart thermostat can help you optimize your AC usage and reduce energy consumption, saving you money on your electricity bill.
  • Window AC Units: For smaller spaces, consider using window AC units with HEPA filters. These units are relatively inexpensive and can provide targeted cooling and air filtration.

One common mistake Albuquerque residents make is neglecting their AC units during the off-season. When you’re not using your AC, cover the outdoor unit with a tarp to protect it from dust and debris. This will help prevent buildup and make cleaning easier in the spring.

Another pitfall is ignoring unusual noises or smells coming from your AC unit. These could be signs of a serious problem, such as a refrigerant leak or a failing motor. Address these issues promptly to prevent further damage and costly repairs.

Finally, remember that maintaining good indoor air quality is an ongoing process. It’s not a one-time fix. Regularly clean your AC unit, change your filters, and monitor your humidity levels to keep your air clean and healthy all year round. By taking these steps, you can enjoy the cool comfort of your AC without sacrificing your health.

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