HVAC Frequently Asked Questions
Our answers to frequently asked questions are broad generalizations, and are provided for entertainment purposes only. Watkins Mechanical, Inc. cannot be held liable for damages resulting from use of this information.
IAQ FAQ (Indoor Air Quality)
- What is the best solution to my allergy problem?
- Finding the best solution for allergies starts with determining what allergens trigger your symptoms. Particles that trigger allergies vary in size from small (10 microns) to very small (.03 microns). Knowing your primary allergy enables us to find a cost effective air filter to help reduce your symptoms. Some people are allergic only to large particles, such as pollen, that can be effectively controlled with a MERV13 media-type air cleaner such as the Aprilaire 4200 which traps 97% of pollen. Finer allergens such as mold and pet dander require the use of a whole-house MERV16 electronic air cleaner such as the Aprilaire 5000 which traps 99% of airborne mold.
Many people don’t realize that volatile organic compounds (VOCs) can irritate breathing passages and make allergy sufferers much more sensitive to dust & pollen. VOCs are chemicals released from building products, furniture, and cleaning supplies in your home. Ventilation is the primary method of controlling these harmful gases. Simply running the bath fan when using cleaners can help to reduce the concentration of VOCs. More complete solutions include a whole-house Energy Recovery Ventilator, an RGF Guardian Air Purifier, or an activated charcoal filter.
- Finding the best solution for allergies starts with determining what allergens trigger your symptoms. Particles that trigger allergies vary in size from small (10 microns) to very small (.03 microns). Knowing your primary allergy enables us to find a cost effective air filter to help reduce your symptoms. Some people are allergic only to large particles, such as pollen, that can be effectively controlled with a MERV13 media-type air cleaner such as the Aprilaire 4200 which traps 97% of pollen. Finer allergens such as mold and pet dander require the use of a whole-house MERV16 electronic air cleaner such as the Aprilaire 5000 which traps 99% of airborne mold.
- Should I be concerned about water condensing on my windows?
- Yes! Condensate on the inside of your windows in the winter is a sign of too much moisture in the home. several factors could be inefficient windows, extremely cold outdoor temperatures, and excessive indoor humidity sources (cooking, showering without a bath fan, humidifier adjusted too high). Wet windows can be a major source of mold, and water can also damage wooden sashes.
- What is the optimal humidity level?
- The optimal humidity level varies with the outdoor temperature and the quality of your windows. Again, our main concern is to avoid condensate on your windows. A good setting for your humidifier is about 35% relative humidity, but as high as 45% is good if your windows stay dry. The average home without a humidifier in this part of the country is about 12-18% in the winter.
- What effect does humidity have on allergies?
- A dry home results in more dry, flaky skin which provides more food for dust mites. On the other hand, high humidity supports more mold growth. The recommend indoor humidity level is between 35% and 55%.
Watkins Heating & Cooling has been a Better Business Bureau accredited business since 1997.
