San Diego is known for its mild climate, but in the summer months, temperatures can easily rise above 86°F (30°C). During this time, air conditioners become a lifesaver, especially in homes and offices. However, behind the refreshing coolness, discomfort often lurks: dry throat, chills, runny nose. The culprit — improper use of the AC, namely cold drafts. In this article, you’ll learn how to protect yourself from the harmful effects of cold air and maintain comfort without giving up indoor cooling.
What Is a Draft from an AC Unit?
A draft is a directed stream of cold air constantly blowing on the same spot — typically a couch, chair, or workstation. This direct exposure leads to local or overall body cooling, which can provoke cold symptoms, especially when transitioning from hot outdoor conditions to a chilled indoor environment.
Why Can a Draft Lead to Colds and Other Health Issues?
- Temperature shock
Entering a cold room from the hot outdoors can cause a sudden 18–27°F (10–15°C) difference, which stresses the immune system. - Dry air
ACs remove moisture from the air. This dries out the mucous membranes of the nose and throat, making them vulnerable to viruses. - Dust and bacteria
Dirty filters circulate allergens, bacteria, and even mold spores throughout the space. - Cold airflow on the body
Constant exposure to cool air on specific areas like the neck or lower back can lead to muscle pain, nerve inflammation, and even infections.
Optimal Comfort Settings
Temperature: The sweet spot is between 72–77°F (22–25°C). Indoor/outdoor differences shouldn’t exceed 15°F (8°C).
Airflow speed: Should not exceed 0.2 m/s to avoid a blowing sensation and ensure even cooling.
Humidity: Maintain a 40–60% humidity level to protect respiratory health.
Timer & night mode: These settings reduce operation during sleep and help prevent nighttime chills.
How to Prevent Drafts from the AC
- Don’t position furniture directly in front of the unit.
Airflow should be directed upward or sideways, never straight onto people. - Check and clean filters monthly.
Dust and mold buildup can trigger allergic reactions and reduce performance. - Ventilate regularly. Even with AC, fresh air is essential for indoor air quality.
- Use a humidifier. Especially important in San Diego’s dry climate.
- Schedule regular maintenance.
Clogged systems are inefficient and increase the risk of discomfort or illness.
If You Need AC Repair or Maintenance — Contact Omega Tech Service!
We offer professional AC system repair and maintenance in San Diego, including filter cleaning, airflow adjustments, and draft elimination. We work fast, cleanly, and with a satisfaction guarantee!
What to Do If You Already Feel Sick from the AC
- Eliminate the cold airflow source.
- Increase air humidity.
- Drink warm liquids and soothe your throat.
- If symptoms worsen, see a doctor.
- Plan ahead: adjust your settings and ensure regular system servicing.
Frequently Asked Questions About Getting Sick from AC
„Can cold air cause illness?“
— Yes, directed airflow on the body can cause overcooling, especially when transitioning from high outdoor temperatures.
„How should the system be set up to stay comfortable?“
— Maintain 72–77°F, avoid direct airflow, ensure humidity is above 40%, and use sleep mode when needed.
„How can I stay healthy in an air-conditioned room?“
— Avoid direct exposure, don’t sit under vents, arrange furniture mindfully, and clean filters regularly.
„Should I ventilate the room even if the AC is on?“
Yes, at least once or twice daily. It reduces pollutant buildup and balances humidity.
Conclusion
— Air conditioners aren’t bad for your health — improper usage is. Avoid direct drafts, monitor temperature and humidity, and don’t skip maintenance. That way, you’ll stay cool without compromising your well-being.
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