What are the symptoms of indoor air quality?

Author: Gabrielle Pacocha V  |  Last update: Friday, July 11, 2025

The quality of indoor air inside offices, schools, and other workplaces is important not only for workers' comfort but also for their health. Poor indoor air quality (IAQ) has been tied to symptoms like headaches, fatigue, trouble concentrating, and irritation of the eyes, nose, throat and lungs.

What are the symptoms of bad air quality in your home?

Occupants of homes with poor indoor air quality may complain of symptoms such as headache, eye irritation, fatigue, dry throat, sinus congestion, dizziness, and nausea. Because many illnesses can cause these symptoms, diagnosing sick building syndrome is difficult.

How do I know if the air in my house is making me sick?

Signs of poor indoor air quality may include excessive amounts of dust or increased difficulty breathing in your home. People with allergies or other breathing problems will often be some of the first to experience the effects of poor indoor air quality. Sometimes you might even smell the problem before you can see it.

How to tell if your house is toxic?

If you suspect your asthma worsens or is more severe than usual, contact your doctor or medical professional.
  1. Bad Smells In The Home. When there's a bad smell in the home, you can tell. ...
  2. Peeling Wallpaper. ...
  3. Spots On The Wall. ...
  4. Bad Allergies Won't Go Away. ...
  5. Visible Mold Growth. ...
  6. Past Water Damage.

What are the health effects of poor indoor air quality?

Health effects associated with indoor air pollutants include: Irritation of the eyes, nose, and throat. Headaches, dizziness, and fatigue. Respiratory diseases, heart disease, and cancer.

How Indoor Air Quality Impacts Your Lungs

Can you get sick from poor air quality?

Exposure to air pollution can affect everyone's health. When we breathe in air pollutants, they can enter our bloodstream and contribute to coughing or itchy eyes and cause or worsen many breathing and lung diseases, leading to hospitalizations, cancer, or even premature death.

What is the toxic house syndrome?

Essentially Toxic Building Syndrome is where the air quality in your home or office is so bad that it can affect the health of those inside. You see you might think you're breathing clean air, but in fact the air inside your home can have more than 900 harmful chemicals and organisms in it, which you simply cannot see.

How to test air quality in your home?

There are many indoor air monitors available on the market, including the Airthings Wave Plus and the uHoo Smart Air Monitor. Alternatively, you can buy another type of smart device that has air quality monitoring functionality, such as a tech-enabled air purifier, smart thermostat or indoor home security camera.

What are the first signs of mold in your house?

You can usually see or smell a mold problem. Mold can appear as slightly fuzzy, discolored, or slimy patches that increase in size as they grow. Most molds produce musty odors that are the first indication of a problem. Mold can grow anywhere there is adequate moisture or a water problem.

What are the symptoms of bad ventilation?

Poor ventilation in an indoor space can lead to carbon dioxide buildup. As a result, the oxygen levels in your indoor air will be reduced. This can cause a number of symptoms, such as fatigue, shortness of breath, decreased cognitive function and headaches.

What does bad air feel like?

The main symptoms are rhinitis (runny nose), congestion, eye irritation, cough and difficulty breathing. When people are exposed to higher concentrations of polluted air over time, the problems worsen. The longer you're exposed, the odds of having chronic sinus issues and lung and heart diseases increase.

How to fix the air quality in your home?

Change your furnace filter regularly. Avoid burning in your home, including fireplaces, wood stoves, gas appliances, and candles. Avoid chemicals such as air fresheners, sprays and cleaning products or use a healthier option. Vacuum your rugs and carpets regularly.

How to detect toxins in your home?

You can use a 3M LeadCheck Swab (found at most hardware stores) to do this; be sure you swab any children's products and imported goods. Conduct a lead risk assessment by a certified inspector before any home remodel.

Can you recover from bad air quality?

If the air quality is especially poor, it may take a few days for your body to recover. And if you're regularly exposed to high levels of unhealthy air, the health consequences can linger for months or even years.

How do I make sure my house air is clean?

Simple things you can do to improve your indoor air quality include: Reduce dust by vacuuming regularly and using a microfiber or damp cloth for dusting. Reduce humidity to avoid mold and mildew buildup and change appliance filters regularly. And make sure to test your home for dangerous gases like radon.

How do you tell if you need an air purifier?

5 Common Signs It's Time To Invest In An Air Purifier
  1. Persistent Allergy Symptoms. One of the most common signs you need an air purifier is persistent allergy symptoms. ...
  2. Frequent Respiratory Issues. ...
  3. Unpleasant And Lingering Odors. ...
  4. Visible Dust And Pet Hair. ...
  5. Mold Growth.

What are the 10 warning signs of mold toxicity?

However, some common signs that may indicate mold exposure include: Coughing, wheezing, shortness of breath, nasal congestion, and frequent sinus infections. Rashes, itching, burning sensations, and persistent skin irritation.

How to tell if mold is behind walls?

How to Detect Mold in Walls
  1. Water stains.
  2. Dark rings.
  3. Discoloration.
  4. Deterioration like peeling, bubbling, or cracking of the paint or wallpaper.

Does homeowners insurance cover mold?

Homeowners insurance doesn't usually cover mold damage or removal unless it's the result of a covered peril. If the mold in your residence was caused by something sudden or accidental, such as a bursting pipe or some other covered incident on your policy, you may be protected.

What are the symptoms of poor air quality in a house?

Indoor Air and Your Health

These include irritation of the eyes, nose, and throat, headaches, dizziness, and fatigue. Such immediate effects are usually short-term and treatable. Sometimes the treatment is simply eliminating the person's exposure to the source of the pollution, if it can be identified.

Can you test air quality with your phone?

EPA's AirNow mobile app provides a simple interface for quickly checking current and forecast air quality information for planning daily activities and protecting your health.

How much does it cost to get your air quality tested?

Average indoor air quality testing costs around $400, but can range from $250 to $550+. Testing specific pollutants can cost you $100 to $1,000+.

How can I tell if my house is making me sick?

Repeated or prolonged exposure to high levels of some VOCs can cause blurred vision, headaches, nausea, dizziness, coughing, burning eyes, respiratory irritation, skin rashes, respiratory illness, concentration difficulties, and other symptoms.

What are symptoms of black mold exposure?

The most common symptoms of black mold exposure include:
  • Sneezing.
  • Coughing.
  • Nasal congestion.
  • Postnasal drip.
  • Red eyes.

Can indoor air make you sick?

Indoor Air and Your Health

These include irritation of the eyes, nose and throat, headaches, dizziness, and fatigue. Such immediate effects are usually short-term and treatable. Sometimes the treatment is simply eliminating the person's exposure to the source of the pollution, if it can be identified.

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