Getting Started

What does an air purifier do?

According to the Environmental Protection Agency (EPA), indoor air pollution is among the top five environmental health risks we currently face. The best way to address the risk of breathing polluted indoor air is to eliminate the source of pollutants with ventilation and filtration.

An air purifier can reduce the concentration of airborne pollutants and allergens in a designated area. The amount of pollutants removed by an air purifier will differ, depending on the specifications of the particular unit.

Why Choose Trusted Brands?

When selecting an air purifier, it’s essential to invest in a reliable, high-quality unit. AirPurifiers.com focuses on offering only the best air purifiers from trusted brands, ensuring that you are getting products that are both effective and durable. Over the years, we’ve seen many air purifier models come and go, with some brands failing to live up to their promises or being discontinued with little support. Our mission is to recommend only those air purifiers that are proven to perform well, are backed by trustworthy companies, and come with long-term customer support.

Choosing a reputable brand is critical not only for performance but also for peace of mind. Trusted brands offer consistent, high-quality products and provide excellent customer service, including easy access to replacement filters and warranties. This ensures that your air purifier continues to operate effectively over time, keeping your air clean and your home safe. Whether it’s a matter of getting replacement filters quickly or receiving assistance with troubleshooting, having access to reliable support makes all the difference in getting the most out of your air purifier.

What should I consider when choosing an air purifier?

To find the best air purifier for you, consider what kind of solution you are seeking, as well as which air purifier technologies may work best for your needs. Read to learn more about what you should keep in mind before purchasing an air purifier.

1. Purpose: What Problem Are You Trying to Solve?

The first step in choosing the right air purifier is identifying the specific problem you are trying to address. Air purifiers are designed to tackle various indoor air quality issues, such as allergens, odors, pet dander, mold, and smoke. Each purifier has different capabilities, so it’s essential to match the right technology to your needs:

• Allergies
• Asthma
• Odors
• Pet Dander
• Mold

By understanding the primary concern you want to address, you can select an air purifier that best meets your needs.

2. Features

When researching which air purifier to purchase, consider if you would like an air purifier with a shut-off timer or other features, such as technology that sensors air pollutants in the air, a filter life indicator, or a UV light.

When choosing an air purifier, look for additional features that enhance usability and performance:

Pre-filter

The pre-filter is a removable filter layer that captures larger particles, such as dust and hair, helping to extend the life of the main HEPA filter. Pre-filters are typically designed to be washable or vacuumed. Replacement costs are relatively low.

Activated Carbon

Activated carbon neutralizes odors and traps chemicals and gases. It is commonly combined with zeolite or potassium iodide in air purifier filters to optimize toxin removal.

Ultraviolet Light

Ultraviolet light (UV) can be used to neutralize bacteria that accumulate on air purifier filters. The key to effectiveness is exposure time, so benefits will vary depending on the specific air purifier model.

Ionizer

Ionizers charge airborne particles, causing them to clump into larger particles. This technology complements HEPA filtration, as it allows the larger particles to be more easily captured. However, ionizers are considered ineffective without HEPA filtration, as it does not remove a significant amount of particles. It is important to also note some ionizers emit ozone, and only ozone-safe ionizers should be considered for residential use. All of the units on AirPurifiers.com are ozone-safe.

Filter Life Indicator

A filter life indicator is a digital display on your air purifier that notifies you when your filter is full and requires replacement. Filter life indicators are often based upon a manufacturer’s recommended filter life. In some higher end units, the filter life indicator reflects actual usage and filter capacity.

Shut-off Timer

Some air purifiers feature a built-in timer, which can be set to automatically shut off the unit after a designated amount of time.

Air Quality Sensors

Some air purifiers come with built-in air quality sensors that monitor the level of pollutants in the air and adjust the unit’s performance accordingly.

3. Effectiveness

The effectiveness of an air purifier varies by model and the technologies it employs. Key factors to consider include:

• Particle Removal Rates: The efficiency of an air purifier at removing airborne particles depends on its filtration system. For instance, HEPA filters can capture up to 99.97% of particles as small as 0.3 microns, making them ideal for allergy and asthma relief. However, other models may have lower removal rates, such as 30% or 60%, which might not be sufficient for individuals with severe allergies or respiratory conditions.
• Technology Type: Different technologies like HEPA, UV, and activated carbon filters each target specific types of pollutants. Understanding how these technologies work and their removal rates can help you choose the most effective purifier for your needs.

4. Square Footage

The placement of your air purifier will make a difference in its effectiveness. Before you purchase, decide where you will place your unit and make sure the square footage of the space can be covered by the air purifier.

5. Style

While the function of your air purifier is paramount, you may want to consider whether the style of the air purifier is important to you. In other words, think about how the air purifier fits in with your home’s decor.

6. Price Point

We believe that air purifier technology is an investment in your health. Many air purifier brands claim significant results at lower price points. In our experience, the unit quality and performance suffer at lower price points. However, we recommend investing in the best air purifier you can get within your budget.

7. Warranty

Air purifier warranties are beneficial, especially if you plan to use your unit long-term and encounter issues after several years of ownership. When it comes to air purifiers, a good rule to remember is this: the shorter the warranty, the shorter the lifespan of your air purifier.

Understanding Air Purifier Technology

The list of air purifier technologies available can be long and robust. Some of the more common technologies available are High Efficiency Particulate Air (HEPA) filtration, electrostatic precipitators, and ozone generators. While many of these are advertised as beneficial, we do not recommend all technologies.

Technology	Pros	Cons	Recommendation
HEPA	– Removes up to 99.97% of particles- Trusted worldwide in medical cleanrooms	– Requires regular filter replacements	Highly Recommended
Electrostatic	– No filter replacement needed	– Only eliminates around 30% of airborne particles- Does not clean all of the air in an enclosed space	Not Recommended
Ionic	– Helps charge and clump particles for easier capture	– Often requires HEPA filtration for effectiveness- Some units emit ozone, which can be harmful	Caution: Can emit ozone
Ozone	– Eliminates heavy odors, kills bacteria, mold, and microorganisms	– Extremely dangerous lung irritant- Restricted in California and unsafe for residential use	Unsafe for residential use

Key Takeaways:

• HEPA filters are the gold standard, highly effective for capturing fine particles, and are the most recommended.
• Electrostatic and Ionic technologies offer limited particle removal and may require additional filtration or can emit harmful ozone.
• Ozone generators, while effective at odor removal and killing microorganisms, are hazardous for health and should not be used in residential spaces.

When choosing an air purifier, prioritize models with HEPA filtration for the best air quality and safety.

Which air purifier will work best for me?

When selecting an air purifier, it’s important to match the right technology with your specific concerns. Different air purifiers are designed to target specific types of pollutants and allergens, so understanding your primary need is essential for making an informed decision. Below is an overview of the best air purifiers for various common indoor air quality issues:

Allergies

If you suffer from allergies, you need an air purifier that can effectively capture airborne allergens like dust, pollen, and pet dander. HEPA filters are your best choice for allergy relief, as they are capable of trapping up to 99.97% of particles as small as 0.3 microns. Air purifiers equipped with HEPA filters, combined with activated carbon filters to neutralize odors, can significantly reduce the presence of allergens in your home, helping to minimize sneezing, congestion, and itchy eyes.

Smoke

Whether it’s from cigarettes, cooking, or outdoor pollution, smoke can linger in the air and create unpleasant odors and health risks. To address smoke, look for air purifiers that feature activated carbon filters. These filters are effective at absorbing smoke particles and gases. For more severe cases, HEPA filters can help capture fine particulate matter, such as those found in secondhand smoke. If you are sensitive to chemicals or need to eliminate strong odors, a combination of HEPA and carbon filters in a single unit will provide the most comprehensive solution.

Pet Dander

Pet dander is a common trigger for allergic reactions in many households. An air purifier with HEPA filtration is highly effective at capturing pet dander, which can be as small as 0.3 microns. Additionally, an air purifier with activated carbon can help absorb odors from pets. If you have multiple pets or a large home, ensure that the air purifier has a high coverage area and a robust filtration system to manage dander effectively.

Asthma

For individuals with asthma, air purifiers that can remove fine particulate matter (PM2.5) and allergens are essential. A HEPA filter is the most recommended option for removing particles like dust, pollen, and pet dander that can trigger asthma symptoms. Air purifiers with air quality sensors are also beneficial, as they automatically adjust filtration settings based on the level of pollutants in the air. Some asthma sufferers may also benefit from models with UV light technology, which can help neutralize bacteria and viruses that may exacerbate respiratory issues.

Mold

Mold spores can easily spread in humid or damp environments, leading to potential health problems. For mold prevention and air purification, HEPA filters are highly effective at trapping mold spores, while UV light technology can help kill mold spores on contact, reducing their ability to reproduce and spread. If you live in a region with high humidity, consider pairing your air purifier with a dehumidifier to reduce the overall moisture levels in your home, preventing mold growth from occurring in the first place.

Dust

Dust accumulation is an ongoing issue in many homes, particularly in dry climates or during certain seasons. An air purifier with a HEPA filter is ideal for capturing dust particles and preventing them from circulating throughout your home. If you’re also concerned about allergens or other pollutants that contribute to dust, an air purifier with activated carbon can also help trap additional chemicals and odors. For larger spaces or high dust environments, choose a unit with a higher CADR (Clean Air Delivery Rate) to ensure thorough coverage and performance.

Recommended Air Purifier Brands

Here’s a streamlined and visually appealing comparison of the top air purifier brands, including their best uses, filter options, warranties, and price ranges:

Brand	Best Usage	Filter Options	Warranty	Price Range
Alen	– Allergies, Asthma, Dust, Pet Dander, Smoke, Gases, Heavy Odors	– Dust and Allergens, Antibacterial, Chemicals and Odor	Forever Guarantee	$199 – $649
AllerAir	– Odor, Chemicals, Smoke, Heavy Odors	– Chemicals and Odor, Smoke and Heavy Odor	10 Years	$700 – $1,100
Austin Air	– Allergies, Asthma, Dust, Pet Dander, Smoke	– No additional filter options available	5 Years	$375 – $765

Key Takeaways:

• Alen offers the most extensive warranty (Forever Guarantee) and a broad range of filters for various air quality needs at a competitive price point.
• AllerAir specializes in handling odors, chemicals, and smoke, and comes with a strong 10-year warranty but at a higher price range.
• Austin Air focuses on essential needs like allergies, asthma, and dust, with a solid 5-year warranty and affordable pricing options.

Choose based on your specific air quality needs, budget, and desired warranty for long-term peace of mind.

Conclusion

Selecting the right air purifier is an important decision that directly impacts your indoor air quality and overall health. By understanding the key factors—such as the specific problem you’re trying to solve, the features that matter most, and the technologies available—you can make an informed choice that best suits your needs. Whether you’re seeking relief from allergies, eliminating smoke, or reducing pet dander, there is an air purifier designed to address your specific concerns.

Choosing a trusted brand with reliable customer support and filter replacement options is also essential for ensuring long-term performance and peace of mind. Brands like Alen, AllerAir, and Austin Air offer top-notch options, each with unique strengths, warranties, and price points to cater to various needs.

Ultimately, investing in a quality air purifier is a smart decision for improving your home’s air and your health. By considering factors like effectiveness, room size, and your unique air quality needs, you can find a purifier that will deliver lasting benefits for years to come. With the right knowledge and a little research, you’re on your way to breathing cleaner, fresher air.