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Best Air Purifiers Under $100: Cost-Effective Clean Air for Smaller Spaces

Don’t settle for mediocre air quality. The best air purifier under $100 is packed with features that will keep your air fresh and clean while still being affordable.

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Best Air Purifier Under $100: Essential Factors to Keep in Mind

Advantages of This Price Point:

  • Affordable option for people on a budget
  • Can effectively remove harmful pollutants and allergens from the air
  • Can improve indoor air quality, which can benefit overall health and well-being
  • Some models may have additional features, such as ionizers or UV-C lights, to further improve air quality

Top Reasons to Consider Getting One:

  • If you or someone in your household suffers from allergies or asthma, an air purifier can help reduce symptoms
  • If you live in an area with high levels of air pollution or have poor indoor air quality, an air purifier can help mitigate the effects
  • If you have pets, an air purifier can help remove pet dander and odors from the air
  • If you are a smoker or live with a smoker, an air purifier can help reduce the harmful effects of secondhand smoke

Points of Concern:

  • Air purifiers under $100 may not be as effective as more expensive models
  • Some models may produce ozone, which can be harmful to health
  • Filter replacements may be expensive, which can add to the overall cost over time
  • Some models may be noisy or produce a noticeable draft, which can be disruptive in certain settings.

A Comprehensive Guide to Buying an Air Purifier: 10 Key Factors to Consider

An air purifier is a must-have appliance in today’s increasingly polluted world. It can help you create a cleaner, healthier living environment by removing allergens, pollutants, and irritants from the air. If you’re in the market for an air purifier but aren’t sure where to start, this guide will provide you with ten essential tips to help you choose the perfect one for your needs.

1. Determine Your Primary Concern

Different air purifiers are designed to target specific types of pollutants. Identifying your primary concern will help you choose a purifier that is best suited to your needs. Common concerns include:

  • Allergens: Pollen, pet dander, and dust mites
  • Smoke: Tobacco, wildfires, and cooking
  • Odors: Cooking, pets, and chemicals
  • Mold and bacteria: Humidity-related issues

2. Choose the Right Filter Type

There are several types of filters used in air purifiers. Each has its advantages and drawbacks, so it’s essential to choose the right one for your needs.

  • HEPA: High Efficiency Particulate Air filters capture 99.97% of particles as small as 0.3 microns, making them ideal for allergen removal.
  • Activated Carbon: These filters are highly effective at removing odors, smoke, and volatile organic compounds (VOCs).
  • UV-C: Ultraviolet germicidal irradiation technology destroys bacteria, viruses, and mold spores.
  • Ionic: Ionic air purifiers release negative ions to attract positively charged particles, but they can produce ozone, which may be harmful in high concentrations.

3. Consider Room Size and Coverage

The size of the room where you plan to use the air purifier is a crucial factor. Air purifiers are rated based on their Clean Air Delivery Rate (CADR), which indicates how quickly they can filter the air in a given space. To ensure proper coverage, choose a purifier with a CADR rating that matches or exceeds the square footage of your room.

4. Noise Level

Air purifiers use fans to circulate air, which can generate noise. If you’re sensitive to noise or plan to use the purifier in a bedroom, consider the device’s noise level, measured in decibels (dB). Generally, a noise level below 50 dB is considered quiet, while levels above 60 dB may be disruptive.

5. Energy Efficiency

Running an air purifier continuously can consume a significant amount of energy. Look for a model with an Energy Star certification, which indicates it meets energy efficiency guidelines set by the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy.

6. Maintenance and Filter Replacement

Regular maintenance and filter replacement are necessary for air purifiers to operate effectively. When choosing a purifier, consider the cost and availability of replacement filters, as well as the recommended filter replacement frequency. Some models feature washable or reusable filters, which can save you money in the long run.

7. Smart Features

Some air purifiers offer smart features, such as Wi-Fi connectivity, allowing you to control the device remotely through a smartphone app. These features can be convenient, but they may also increase the purifier’s cost. Evaluate your needs and decide if smart features are worth the additional expense.

8. Aesthetics and Design

While functionality should be your top priority, the design of the air purifier may also be important, especially if it will be prominently displayed in your home. Look for a model that matches your home’s décor and doesn’t take up too much space.

9. Warranty and Customer Support

A warranty is a crucial factor to consider when purchasing an air purifier, as it offers protection against manufacturing defects and other issues. Most air purifiers come with a 1- to 5-year warranty, but some high-end models may offer longer coverage. Also, check for the availability of customer support, as this can be helpful if you encounter any problems or have questions about your purifier.

10. Read Reviews and Compare Prices

Before making your final decision, read customer reviews to gain insights into the performance, reliability, and potential drawbacks of different air purifiers. Look for reviews from users with similar needs and concerns, as this can help you determine if a specific model is right for you. Finally, compare prices across multiple retailers to ensure you’re getting the best deal possible.


Choosing the right air purifier can greatly improve the air quality in your home, providing you with a healthier living environment. By considering the factors outlined in this beginner’s guide, you’ll be well-equipped to make an informed decision and select the best air purifier for your needs. Remember to prioritize your primary concerns, choose the appropriate filter type, and consider factors such as room size, noise level, energy efficiency, maintenance, smart features, aesthetics, warranty, and customer support. And don’t forget to read reviews and compare prices before making your final decision.

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