How do you check the air in your home?

Author: Prof. Karolann Conn I  |  Last update: Sunday, January 25, 2026

Install an Indoor Air Monitor Choose a smart air monitor based on your specific needs, such as detecting particulate matter in polluted areas or identifying carbon monoxide and radon in older homes. Advanced monitors can detect volatile organic compounds (VOCs), temperature, and humidity changes.

Can I test the air quality in my home myself?

At-home test kits are readily available, offering a preliminary assessment of IAQ within your home. These kits provide the necessary equipment and instructions for collecting samples to analyze pollutants such as radon, mold, dust mites, and VOCs.

How can I test the air in my house?

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 symptoms of poor air quality in a house?

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 can I measure air at home?

Use an air quality monitor: Air quality monitors can detect and display levels of pollutants in the air. They can measure particulate matter (tiny particles that penetrate deep into the lungs and are commonly found in dust and smoke), as well as VOCs, CO2 levels, plus humidity and temperature.

How to Test Home Air Quality (DIY Solutions to Check Air Quality in Your Home)

How to test for mold in the air in your house?

The two most common methods used to identify a mold problem are mold test kits or air testing sensors. These kits include the necessary air test devices, chemical strips, or Petri dishes and are available at department stores or online. They'll also come with an instruction manual for any brand-specific guidelines.

How do I figure out how much air is in my room?

STEP 2: The volume of air in the room.

Measure the dimensions of the room, including the length (L), width (W), and height (H), in feet. Calculating the volume in cubic feet is a simple matter of multiplying L x W x H.

How can I tell if the air in my house is bad?

Allergies, Irritations, or Respiratory Problems

One of the first (and most alarming) signs that your home has poor air quality is if you or your family experience an increase in allergies, irritations, or respiratory problems. These sudden changes can be caused by a variety of air contaminants, such as: Mold spores.

How to fix poor air quality in house?

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 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.

How to test if your house is making you sick at home?

If you want to monitor your indoor air quality proactively, you can invest in an air quality monitor. This will help you test if your house is making you sick. These devices constantly check the indoor air quality and provide feedback about the levels of different pollutants.

How much does it cost to test indoor air quality?

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 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 test the air quality in your home?

DIY Methods
  1. Air Quality Monitors: These devices can detect various pollutants, including VOCs, particulate matter (PM2. ...
  2. Mold Test Kits: These kits help you identify mold presence in your home. ...
  3. Carbon Monoxide Detectors: These are essential for detecting this odorless, colorless gas that can be deadly at high levels.

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.

Who do you call to check the air quality in your home?

For questions or comments regarding indoor air quality such as mold, radon, asthma, second-hand smoke and air cleaning devices, please contact the U.S. EPA Office of Indoor Air Quality.

What is the biggest cause of poor air quality?

Sources of air pollution are multiple and context specific. The major outdoor pollution sources include residential energy for cooking and heating, vehicles, power generation, agriculture/waste incineration, and industry.

Does an air purifier really work?

In summary, while air purifiers can be effective in improving indoor air quality, their true effectiveness can be difficult to assess without proper monitoring tools. The integration of sensors to monitor indoor air quality is essential to ensure that the air purifier is operating effectively and energy efficiently.

How do you get bad air out of your house?

Get a “True HEPA” air purifier.

HEPA filters capture 99.97% of particles as small as 0.3 microns and they are an effective instrument in filtering out mold, dust, pollen, and other air pollutants. This type of filter should be replaced every month or two to work efficiently.

What are the symptoms of unhealthy air?

Even if you are healthy, you may experience temporary symptoms from exposure to elevated levels of particles. Symptoms may include: irritation of the eyes, nose and throat; coughing; phlegm; chest tightness; and shortness of breath.

How do I fix the air quality in my home?

There are several low-to-no-cost steps you can take to improve the indoor air quality in your home based on three best practice strategies of: controlling the sources of pollution; insuring there is adequate ventilation; and, using supplemental air cleaning and filtration.

What are the four major indoor air pollutants?

Indoor Air Quality (IAQ)
  • Carbon Monoxide.
  • Indoor Particulate Matter.
  • Secondhand Smoke/Aerosol.
  • Volatile Organic Compounds.

How do I check my room air?

How to measure Indoor Air Quality?
  1. VOC meter – VOC meter is used to measure an accumulation of volatile organic compounds (VOCs) and total volatile organic compounds (TVOCs)
  2. NOx meter – NOx meter measures Nitrogen oxide levels.
  3. SO2 meter – SO2 meter measures Sulphur dioxide levels.

How do you check air changes in a room?

What is ACH or ACPH? How do you calculate ACH or Air Changes per Hour? To calculate Air Changes Per Hour (ACH), find the CFM of your device and multiply that by 60 then divide that total by the total cubic feet of the room to get your total ACH.

How do you calculate air leakage in a room?

CALCULATION OF LEAKAGE AIR DUE TO ROOM PRESSURIZATION.
  1. Q=Cd * A * (2 ∆P/d) ^0.5 or.
  2. ∆P=(d/2) * (Q/(Cd * A)) ^2.
  3. where ∆P=pressure difference across opening = 30 Pa.
  4. and Q=airflow rate, m3/s.
  5. and Cd=discharge coefficient for opening, dimensionless (0.6)
  6. and A=cross-sectional area of opening, m2.

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