Free Indoor Air Quality Testing
You spend up to 90% of your time indoors, but did you know that indoor air is 5 to 10 times more polluted than outdoor air? While you may associate pollution with outdoor environments, indoor spaces can actually harbor many more harmful pollutants.

What Is Indoor Air Pollution

Understanding and controlling common indoor air pollutants can help reduce your risk of symptoms caused by poor air quality. There are various factors that contribute to indoor pollution, including inadequate ventilation, the presence of chemical pollutants from household products, building materials, and furnishings, as well as the accumulation of allergens, dust, and mold. Additionally, activities such as cooking, cleaning, and smoking can introduce further pollutants into the indoor environment. The combination of these factors can quickly compromise your health and safety.

Austin Air Quality Inspections

Reduce bacteria, mold, mildew, and other allergens in your home with UV light installation. UV lighting can be installed right above the indoor air handler or within the ductwork. Improve your home’s air quality with UV light installation today.

5 Common Symptoms of Poor Indoor Air Quality

When indoor air quality standards aren’t met, you may experience a range of symptoms and adverse health effects. The specific symptoms will vary depending on the type, duration, and concentration of the pollutants you’ve been exposed to. Here are some of the most common symptoms of bad indoor air quality:

5 Common Symptoms Of Poor Indoor Air Quality Graphic


Poor indoor air quality, especially due to high levels of certain pollutants like volatile organic compounds (VOCs), can cause headaches and migraines in some individuals.


Exposure to allergens such as dust mites, pet dander, pollen, or mold spores in the indoor environment can trigger allergic reactions. Symptoms may include sneezing, runny or stuffy nose, itchy and watery eyes, and skin rashes.

Skin Irritation

Exposure to certain chemicals or irritants including VOCs, particulate matter, and mold in the indoor environment can cause skin irritation, dryness, itching, or rashes.

Respiratory Issues

Poor indoor air quality can lead to various respiratory problems, including coughing, wheezing, shortness of breath, chest tightness, and irritation of the throat, nose, and eyes. Individuals with pre-existing respiratory conditions like asthma may experience exacerbation of their symptoms.


Indoor air pollution can contribute to feelings of fatigue, drowsiness, and difficulty concentrating.

What Do We Analyze During a Free Air Quality Assessment?

During each indoor air quality inspection, we test for all major indoor air pollutants and offer an exhaustive list of recommendations to help you identify sources of indoor air pollution and improve air quality in your home or office.

Each air quality check measures 10 critical air quality parameters, which factor into increasing poor indoor air quality.

What Do We Analyze During A Free Air Quality Assessment Image

  • PM2.5
  • PM10
  • PM1.0
  • CO2
  • TVOC
  • Formaldehyde
  • Temperature
  • Humidity
  • Air Quality Index

1. Particulate Matter (PM)

Particulate matter is categorized according to its size and falls into one of three classifications:

  • Particulate matter (PM 10)
  • Fine particulate matter (PM 2.5)
  • Extremely fine particulate matter (PM 1.0)

PM10 matter consists of inhalable particles 10 micrometers and smaller. Short-term exposure to PM10 has been associated primarily with the worsening of respiratory diseases, including asthma and chronic obstructive pulmonary disease (COPD).

  • Dust
  • Pollen
  • Pet dander
  • Smoke
  • Mold spores
  • Pollutants from construction sites, landfills and agriculture, wildfires, and industrial sources
  • Temperature
  • Humidity
  • Air Quality Index

Pm10 Graphic

PM2.5 particles include inhalable matter 2.5 micrometers and smaller. These particles are considered especially dangerous to human health because they can enter the lungs and bloodstream and cause serious health issues.

  • Cooking
  • Burning candles
  • Fireplaces
  • Dust
  • Ash
  • Tobacco smoke
  • Pollen
  • Combustion particles
  • Mold
  • Large bacteria

Pm2.5 Graphic

PM1.0 matter originates from similar sources as PM2.5, but because these particles are so small, they can remain suspended in the air for long periods of time and can bypass the body's defense mechanisms in the upper respiratory system. Ultra-fine particles can end up in the bloodstream.

  • Factory emissions
  • Combustion particle
  • Wildfire smoke
  • Cooking
  • Bacteria
  • Viruses
  • Mold

Pm1 Graphic
Carbon Dioxide (co2) Graphic

2. Carbon Dioxide (CO2)

CO2 is generated in one of two ways: human respiration and combustion. When CO2 levels rise, it can result in various detrimental outcomes such as increased sleepiness, distraction, and lethargy. Additionally, heightened levels of CO2 have been linked to reduced cognitive function. It’s recommended to maintain concentrations below 2,000 parts per million (ppm) for optimal comfort and productivity. Regular monitoring of CO2 levels can help identify areas with inadequate airflow and help guide improvements in airflow and ventilation.

3. Total Volatile Organic Compounds (VOCs)

These chemicals can easily vaporize at normal room temperatures. Composition is diverse and can include formaldehyde. These compounds are released into the air by various sources including paints, adhesives, carpets, air fresheners, composite wood products, cleaning agents, personal care products, solvents, pesticides, fuels, cooking processes, and tobacco smoke.

Exposure to VOCs has been associated with respiratory issues, allergic reactions, headaches, dizziness, fatigue, and in some cases, more severe health conditions.

Total Volatile Organic Compounds (vocs) Graphic
Formaldehyde (ch2o) Graphic

4. Formaldehyde (CH2O)

Formaldehyde is widely used due to its preservative and adhesive properties. However, exposure to formaldehyde can have adverse effects on human health. Exposure to formaldehyde is not uncommon, as it is used as a binder in paints and coatings, in fabrics and carpets to provide wrinkle resistance or flame retardancy, in adhesives, in building materials, and much more. However, exposure above the recommended levels can cause various health effects including respiratory irritation and disorders, skin and eye irritation, allergic reactions, headaches, and in some cases, increased risk of certain cancers.

5. Temperature

Uniform temperatures at home and in the office are important to everyone’s comfort and well-being. Proper temperature control helps to prevent stagnant conditions and minimizes the accumulation of pollutants, in addition to balancing humidity.

Temperature Graphic
Humidity Graphic

6. Humidity

Insufficient humidity in indoor environments can lead to dryness, discomfort, and health issues. Low humidity levels can cause dry skin, dry eyes, nasal irritation, and respiratory problems. It can also lead to increased susceptibility to respiratory infections, as the respiratory system's protective mechanisms may be compromised.

Excessive humidity can create a breeding ground for mold, mildew, and dust mites, leading to respiratory allergies and exacerbating asthma symptoms.

7. Dew Point

The dew point is the temperature at which air becomes saturated with water vapor, leading to the formation of dew or condensation. Dew point plays an important role in assessing and managing moisture levels in indoor environments. This is a valuable metric for understanding moisture levels responsible for dampness and potential mold growth. High levels of moisture and inadequate ventilation can create an environment conducive to microbial growth, which can negatively impact indoor air quality and pose health risks.

Dew Point Graphic
Air Quality Index Graphic

8. Air Quality Index

AQI is a measurement that focuses on key air pollutants that can have adverse effects on human health and the environment. Knowing your AQI allows you to understand potential health risks associated with exposure to common air pollutants, and make informed decisions about how to protect your health inside your home.

Indoor Air Quality Standards Chart Graphic

How Are Indoor Air Quality Standards Created

Indoor air quality standards are created and established by governmental agencies such as the EPA and other industry-specific organizations and associations. These entities conduct scientific research, gather expert opinions, and collaborate with stakeholders to establish guidelines and regulations for acceptable levels of pollutants and contaminants in indoor environments.

The EPA uses a numerical scale for Air Quality Index, ranging from 0 to 500, where higher values indicate worse air quality. The scale is divided into six categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), and Hazardous (301-500).

How Vertex Mechanical Can Help

Our Indoor Air Quality Services

There are a range of indoor air quality systems and products available to help improve the quality of your air at home or business. One of our qualified HVAC experts can provide recommendations for indoor air quality solutions based on your specific test results, needs, and goals.

Indoor Air Quality Testing

Our free test can provide valuable insights into the effectiveness of ventilation and HVAC systems by identifying issues with airflow, ventilation rates, filtration systems, and more. We’re here to help you make informed decisions on how to maintain healthy, safe, and comfortable indoor spaces. Different pollutants require different strategies for remediation. Whether your goals are to improve air quality at home or ensure compliance with applicable standards and regulations, our free assessment is designed to help get you on the right path to cleaner air.

HEPA Filter Installation

High-efficiency particulate air (HEPA) filters are advanced filtration systems that are designed to capture and remove extremely small particles from the air. They’re capable of removing airborne particles as small as 0.3 micrometers with an efficiency of 99.97%. This means that HEPA filters can effectively capture and trap a wide range of pollutants, including mold spores, pet dander, dust mites, tobacco smoke, and other common sources of indoor air pollution. Learn more.

Professional Duct Cleaning

Over time, your HVAC system’s ductwork can accumulate a variety of airborne particles, including dust, dander, and even mold. This can have negative effects on the overall air quality in your home or building. Call our HVAC professionals to ensure your ducts are circulating fresh, clean air throughout your home or office. We have the expertise and tools to inspect and clean your ductwork effectively, perform thorough cleanings, and remove irritants. An antimicrobial treatment can additionally prevent future mold growth and ensure a sanitized environment within the ductwork.

Mechanical Ventilation Systems

Proper ventilation helps to reduce harmful particles, eliminate odors, control temperature and humidity, and prevent stagnant air. We’re the experts in industrial vent replacements and repairs. Our services are guaranteed and overseen by licensed professionals, and we work closely with general contractors, engineers, and others to ensure your satisfaction.Ensure your HVAC system is working properly and ventilating the indoor space as needed by scheduling an inspection today. Learn more.

Air Purification Systems

Installing an air purification system offers several benefits, including improved air quality and better health outcomes. Although HVAC systems already utilize filters, dedicated air purifiers and cleaners offer enhanced filtration capabilities by effectively trapping pollutants and particles as they pass through the system.

While standard HVAC filters are limited in their ability to remove contaminants such as mold, bacteria, viruses, odors, and other substances that can degrade indoor air quality, advanced filters are specifically designed to address these concerns. By incorporating advanced filters into your HVAC system, you can significantly enhance the air quality in your home and mitigate the presence of harmful particles and odors that can have adverse effects on your well-being.

We also install commercial-grade equipment, such as air scrubbers, air purifiers, and dehumidifiers, to maintain indoor air quality.

Regular HVAC Maintenance

HVAC maintenance plays a crucial role in maintaining optimal indoor air quality. By ensuring your HVAC system is working properly and stays well-maintained, you can effectively address several factors that impact air quality. Regular HVAC maintenance promotes effective filtration, prevents mold and moisture problems, optimizes system efficiency, improves ventilation, and enables early detection of issues. By prioritizing regular HVAC maintenance, you can not only ensure improved indoor air quality and energy efficiency, but also the longevity of your HVAC system. Learn more.


HVAC zoning systems improve indoor air quality by providing targeted air distribution, reducing contamination transfer, enhancing ventilation control, enabling allergen and odor control, and facilitating precise humidity management. By customizing HVAC operations for different zones, you can create a healthier, more comfortable indoor environment.

Whole-House Humidity Control

When the air lacks moisture, it becomes easier for dust, dander, and other particulate matter to become airborne and stay suspended in the air for longer periods. This means that these irritants can be more easily inhaled, leading to discomfort, allergic reactions, and overall compromised indoor air quality.

To address these concerns and ensure a healthier and more comfortable home environment, we offer superior whole-house humidity control solutions. These systems are designed to regulate and maintain optimal humidity levels throughout your entire home, balancing moisture to achieve a comfortable and healthy indoor environment.

Better HVAC Systems

Clean air and HVAC systems are intricately connected in creating a healthy and comfortable indoor environment. Your HVAC system plays a vital role in maintaining indoor air quality by controlling temperature, humidity, and air circulation. A good system helps filter out pollutants, such as dust, allergens, and airborne contaminants and ensures that the air circulating in your home or office building is clean and safe.

Indoor Air Quality
Variable Mini-Splits

DIY Tips for Improving Indoor Air Quality

When the air lacks moisture, it becomes easier for dust, dander, and other particulate matter to become airborne and stay suspended in the air for longer periods. This means that these irritants can be more easily inhaled, leading to discomfort, allergic reactions, and overall compromised indoor air quality.

To address these concerns and ensure a healthier and more comfortable home environment, we offer superior whole-house humidity control solutions. These systems are designed to regulate and maintain optimal humidity levels throughout your entire home, balancing moisture to achieve a comfortable and healthy indoor environment.

Change Your Air Filters Regularly

Air filters are designed to capture and trap airborne particles and contaminants, including dust, pollen, pet dander, mold spores, and other pollutants. When filters accumulate enough debris, their effectiveness is reduced and airflow starts to flow. As a result, air circulation is reduced and more airborne pollutants, allergens, and irritants remain in the indoor environment.

Maintain Good Ventilation

Good ventilation is crucial for creating healthy indoor air. Adequate airflow helps remove pollutants, odors, and excess moisture from the indoor environment. Utilizing exhaust fans in the kitchen and bathrooms is an effective way to remove airborne contaminants generated during cooking and bathing. Ensure you keep existing permanent ventilation features, like air bricks and trickle vents, unobstructed to allow proper airflow and reduce the risk of condensation and pollutant buildup. Opening windows for natural ventilation can also bring in fresh air and dilute indoor pollutants. Lastly, use you can utilize fans and arrange furniture away from wall corners to easily enhance overall ventilation effectiveness.

Minimize Open Flames

Reduce the use of open-flame appliances, such as wood-burning stoves, gas stoves, fireplaces, and candles, as they release particulate matter that can negatively impact air quality. Focusing on minimizing the use of gas or wood stoves indoors and avoiding unvented fuel-burning appliances will help prevent the accumulation of carbon dioxide and other harmful combustion byproducts.

Clean & Vacuum Regularly

Regularly cleaning and vacuuming the living spaces help to reduce the accumulation of dust, allergens, and other pollutants. It’s especially important to minimize the use of carpets as they can trap and retain dirt, pet dander, and allergens. For those spaces with carpets, vacuuming regularly is essential to remove harmful particles effectively. If you have pets, it becomes even more important to vacuum frequently in order to eliminate pet hair and dander that can contribute to poor air quality. By incorporating regular cleaning and frequent vacuuming into your routine, you can significantly reduce the presence of airborne pollutants and improve the overall indoor air quality of your home.

Avoid Artificial Scents

Products like air fresheners, scented candles, incense, and similar items may emit volatile organic compounds (VOCs) and other chemicals that can worsen air quality and potentially trigger respiratory issues such as asthma. Instead, opt for natural alternatives such as opening windows to let in fresh air, using essential oil diffusers, or incorporating indoor plants that naturally purify the air. By avoiding artificial scents and choosing fragrance-free options, you can help maintain a healthier indoor environment and reduce the risk of respiratory sensitivities or irritations.

Incorporate Live Plants

Live plants offer numerous benefits beyond aesthetics. Through the process of photosynthesis, plants convert carbon dioxide into oxygen, effectively purifying the air. They also have the ability to absorb and filter out toxins, contributing to a cleaner and healthier indoor environment. Additionally, having greenery indoors has been shown to boost mood, improve concentration, enhance creativity, and provide stress relief. Certain plants, such as the red-edged dracaena, weeping fig, and bamboo palm, are particularly effective in filtering the air and removing pollutants. By introducing live plants into your home or office, you can enjoy the benefits of improved air quality while creating a more pleasant and inviting space.

Reduce the Number of Products with VOCs

To minimize VOC emissions, consider opting for non-toxic paint, green cleaners, and less-polluting cleaning products instead of conventional aerosols and sprays. When selecting building materials and furnishings, choose low-emitting options such as bamboo, wool carpets, and latex paint. It's important to note that VOCs can continue to be released over time, even when products are in storage, so it's advisable to keep these items in a well-ventilated area like a garage, where VOC concentration is less likely to affect indoor air quality. By replacing products that emit VOCs with non-toxic alternatives and choosing low-emitting materials, you can significantly improve the air quality in your indoor space.

Maintain Good Humidity

By maintaining good relative humidity levels and implementing these measures, you can significantly enhance indoor air quality and create a healthier living environment. You can maintain proper relative humidity levels in your home in various ways. Taking precautions like shutting doors during hot showers, covering cooking pans, and using extractor fans to remove steam are just a few ways in which you can maintain good indoor air quality.

Get Proactive About Mold & Mildew

Reducing mold and mildew is crucial for improving indoor air quality. Address any leaks or water damage promptly, as moisture promotes the growth of mold and mildew, which can significantly impact air quality. If you notice moisture on windows or surfaces, it's important to turn off appliances like humidifiers or kerosene heaters that may contribute to excess moisture in the air. Paying special attention to carpets on concrete floors is also important, as they can absorb moisture and become breeding grounds for biological pollutants. Adding insulation and window treatments can help seal out moisture, while caulking and weatherstripping improve energy efficiency and prevent humid air from entering the home.

High Humidity At Home

How To Reduce Humidity At Home - Is Your AC the Answer? Austin summers are…

Special Offer

Free Diagnostics On All Repairs New Customers Only

Call or Click to Schedule an Appointment Today!

100% Satisfaction Guaranteed

We Proudly Serve the Following Areas


Bee Cave