5 Best Air Purifiers Under $100 2025 in US

Step-by-Step Guide to Finding the Best Air Purifiers Under $100

1. Understanding Your Needs

Before diving into specific models, it’s important to understand what you need from an air purifier. Are you targeting allergens, dust, smoke, or pet dander? Knowing your primary concern helps in selecting the right filter type and features. For example, HEPA filters are excellent for capturing allergens, while activated carbon filters are better for odors and smoke.

2. Key Features to Consider

When evaluating air purifiers in this price range, focus on the following features:

• Filtration System: The presence of a True HEPA filter is crucial for removing particles as small as 0.3 microns. Some models also include pre-filters and activated carbon filters for additional protection against larger particles and odors.
• Room Coverage: Check the unit’s recommended room size to ensure it matches your space. Most budget air purifiers are designed for smaller rooms, typically up to 200 square feet.
• Noise Level: If you plan to use the purifier in a bedroom or office, consider the noise level. Look for models with a “sleep mode” or that operate quietly.
• CADR Rating: The Clean Air Delivery Rate (CADR) measures the volume of filtered air delivered by the purifier. Higher CADR values indicate better performance.
• Additional Features: While not essential, features like filter replacement indicators, multiple fan speeds, and air quality sensors can enhance usability.

3. Researching and Comparing Models

Start by reading reviews and comparisons on trusted websites. Platforms like Consumer Reports, Wirecutter, and verified customer reviews on e-commerce sites provide valuable insights into the performance and reliability of different models.

4. Recommended Models

Based on thorough research, here are a few air purifiers that offer good performance under $100:

• LEVOIT Core 300: Known for its True HEPA filter and quiet operation, this model is effective for rooms up to 219 square feet. It has a sleek design and multiple filter options, including a pet allergy filter and toxin absorber filter.

• PARTU BS-03: This compact purifier includes a True HEPA filter and an activated carbon filter. It also features a fragrance sponge, allowing you to add essential oils for a pleasant scent. It’s suitable for smaller spaces and operates quietly.

• GermGuardian AC4100: Ideal for small rooms, this 3-in-1 air purifier uses a HEPA filter, UV-C light, and an activated charcoal filter to reduce germs, mold spores, and odors. Its compact size makes it easy to place on a desk or nightstand.

• Honeywell HPA020B: This model is designed for small rooms and features a True HEPA filter that captures up to 99.97% of airborne particles. It has three cleaning levels and a compact design.

5. Evaluating Long-term Costs

Consider the cost of replacement filters, as they need to be changed regularly to maintain effectiveness. Check the manufacturer’s recommendations for filter replacement intervals and the availability of affordable replacement filters.

6. Making the Purchase

Once you’ve narrowed down your choices, compare prices across different retailers to find the best deal. Look for discounts, promotions, and bundle deals that might include extra filters.

7. Setting Up and Maintenance

After purchasing, follow the manufacturer’s instructions for setup and maintenance. Regular cleaning and timely filter replacements are crucial for optimal performance. Keep the air purifier in a location with good airflow and avoid placing it behind furniture or curtains.

Conclusion

While finding a high-quality air purifier under $100 can be challenging, it’s possible with careful research and consideration of your specific needs. By focusing on key features such as filtration efficiency, room coverage, and noise level, you can find a model that significantly improves your indoor air quality without breaking the bank.