An air purifier can help improve your indoor air quality. (iStock)
Poor outdoor air quality is a reality of modern life, and pollutants can seep into your home, no matter how well insulated you think it is. Pollutants such as carbon monoxide, particulate matter and environmental tobacco smoke are important irritants that can affect your breathing. Additionally, indoor air quality can also be affected by pet dander, mold and volatile organic compounds from various products and materials.
The bottom line is that your indoor air quality can also be toxic. Some symptoms of unhealthy indoor air quality include headaches, irritation of your ears, nose, and throat, and dizziness, among others—but more severe effects can add up over time.
Air purifiers are a great tool to improve indoor air quality. You might as well invest in a sensor just so you know what you’re working with. Adding fans to indoor areas is another way to prevent irritants like mold from forming. Here are 9 products worth investing in if you’re concerned about the air you breathe:

Try an air quality monitor to get real-time information about indoor air. (Walmart)
This IQAir air quality monitor from Walmart provides real-time information about your indoor air, allowing you to identify pollution hotspots and fluctuations. It measures air pollution from cooking, cleaning, wood burning, interior decoration, smoking, fire smoke and traffic pollution entering the building. The SwitchBot Meter Pro, $69.99 at Amazon , is a five-in-one air quality monitor that measures carbon dioxide levels, temperature and humidity in real time.

Improve indoor air quality by removing allergens such as dust, pollen, pet dander and other airborne particles with an air purifier. (AirDoctor)
Improve indoor air quality by removing allergens such as dust, pollen, pet dander and other airborne particles with an air purifier that can also effectively neutralize unpleasant odors from cooking, pets or mold with the help of of activated carbon filters. The AirDoctor, which comes in several sizes, has an UltraHEPA filter, which removes 99.99% of tested bacteria and viruses down to 0.003 microns. The Coway AirMega AP-1521HH Mighty Air Purifier, on sale for $162.99 at Coway, works quickly to remove volatile organic compounds and air pollutants like dust, pollen and pet dander.
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Original price: $279

A great way to treat environments with mold or mildew is with a dehumidifier. (Amazon)
A dehumidifier is a great way to treat environments with mold or mildew. It removes moisture from the air in your home and can help reduce allergens. This Frigidaire portable dehumidifier for sale on Amazon has a large tank and features a continuous drain option that lets you skip emptying the water bucket. This Humsure unit, on sale for about $150 at Walmart, has a large tank and is easy to clean.

HVAC/Furnace HEPA filters can capture small, harmful particles to improve air quality. (Amazon)
HVAC/Furnace HEPA filters can capture small, harmful particles such as pollen, pet dander, smoke and dust mites to improve indoor air quality. The Merv 13 filter for your HVAC or furnace outperforms standard fiberglass filters. It adopts the latest electrostatic filtration technology to maximally capture pollen, mold bacteria, smoke, carriers and other microscopic particles. Or try a Filtrete filter, $18.47 at Walmart, with technology to help attract and capture countless microparticles and up to 54% of airborne virus particles to give you cleaner air.

A bathroom fan can effectively remove moisture and unpleasant odors from an enclosed space. (Walmart)
A bathroom fan can effectively remove moisture and unpleasant odors from an enclosed space. The Broan-NuTone Roomside series exhaust fan is great for small to medium sized spaces and is easy to install. Buy this fan on sale at Amazon for $71.

Try an exhaust fan to help remove stale air, moisture and unwanted odors from your kitchen. (Home Depot)
Try an exhaust fan to help remove stale air, moisture and unwanted odors from your kitchen. This vacuum cleaner from Home Depot is designed with voice, gesture and touch control options for easy and convenient operation. Powerful suction captures smoke and odors while keeping noise levels low. Try this portable air extractor for $159.99 if you want to skip the installation but still keep your kitchen pollutant-free.
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Humidifiers can improve indoor air quality by adding moisture to dry air. (Amazon)
Humidifiers can improve indoor air quality by adding moisture to the air, which can help reduce the potential for airborne allergens and irritants, especially in the winter when heaters can make the air dry. This Levoit warm and cool mist humidifier can cover up to 753 square feet and can be controlled by an app or voice. It has a 1.6 gallon tank that can last an entire day. This Levoit humidifier, $99.99 at Walmart, includes a humidity sensor and an essential oil tray.

The spider plant is an excellent option for air filtration. (Walmart)
Adding indoor plants is a natural way to improve indoor air quality. According to NASA, the spider plant is an ideal air-filtering plant because it helps remove formaldehyde, xylene, and toluene from the air. Plus, this plant is easy to care for and thrives in indirect sunlight. Or try a snake plant, $59.99, at Plants.com for another low-maintenance option that cleans up harmful particles.
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Non-toxic cleaners are formulated without harmful chemicals. (Amazon)
Switch to a good, non-toxic cleaner for your home. Non-toxic cleaners are formulated without harmful chemicals such as ammonia, chlorine and phthalates, which can irritate the skin, cause respiratory problems and pose potential health problems. Use Dr. All-Purpose Cleanser. Bronner’s anywhere in the home for an effective cleanser that smells great but doesn’t contain harsh chemicals.