10 Best Inexpensive Air Purifiers 2025 in the United States

The LEVOIT Vital 100 air purifier is a solid choice if you're looking for an affordable unit that performs well in medium to large rooms, covering up to 788 square feet. Its AHAM VERIFIDE certification means it has been independently tested for air cleaning efficiency, which adds trust in its capability to reduce allergens, smoke, dust, and pet hair. The 3-stage filtration system includes a washable pre-filter, a main filter, and an activated carbon layer to tackle odors effectively. It has a Clean Air Delivery Rate (CADR) of 105 CFM, which is decent for its price range and room size coverage.

One nice feature is its very quiet operation at 24 decibels, so it won’t disturb sleep, plus you can turn off display lights for extra comfort at night. Energy consumption is low at 38 watts, costing roughly $1.66 weekly if you run it continuously, making it energy-friendly. Maintenance is straightforward but important: the filters need replacing every 6 to 8 months, and you’ll have to buy official Levoit filters as it doesn’t support third-party ones, which might be a slightly higher ongoing expense. Its compact design and top-facing vents allow flexible placement in corners or near walls.

If you have a very large open space or require ultra-high CADR for heavy pollution, this model might fall short. While the washable pre-filter helps save money by catching larger particles, the main filter still requires periodic replacement. The Vital 100 is user-friendly, quiet, energy-efficient, and reliable for everyday home use, especially in bedrooms or living rooms where allergies, odors, or pet hair are concerns.

The LEVOIT Core 300S-P air purifier stands out in the budget-friendly category with its smart features and effective purification technology. One of its main strengths is the 3-in-1 filtration system, which effectively combats common indoor pollutants like pet hair, dust, smoke, and allergens. With a Clean Air Delivery Rate (CADR) suitable for medium to large rooms, it efficiently refreshes spaces up to 1,095 square feet, making it a great choice for bedrooms, living rooms, or kitchens. The ultra-quiet operation at just 22dB is a major plus for light sleepers, allowing for undisturbed sleep while the unit works. The ability to control the purifier via Alexa or Google Assistant, along with the VeSync app for monitoring air quality, adds convenience for users who prefer smart home integration.

While the Core 300S-P is designed for low energy consumption, users should consider the ongoing costs of filter replacements, which vary based on usage and chosen filter type. The unit's size, while compact, may not be ideal for very large spaces without additional units. Additionally, some users might find the reliance on smart features unnecessary, especially if they prefer simpler devices.

The LEVOIT Core 300S-P is well-suited for those seeking a reliable, smart air purifier that combines effective performance with user-friendly features in an affordable package.

The PuroAir HEPA Air Purifier is a solid choice for those seeking an effective and inexpensive air purifier for large rooms up to 1,115 sq ft. Its powerful 3-layer filtration system, including a pre-filter, HEPA filter, and activated carbon, effectively captures up to 99.9% of pollutants such as dust, pollen, smoke, pet dander, and VOCs, making it an excellent option for allergy sufferers and pet owners. Additionally, it has been lab-tested and holds multiple certifications, including CARB, ETL, ISO, UL, and Energy Star, which adds to its credibility and reliability.

The built-in smart particle sensor helps maintain air quality by adjusting power levels automatically, and the quiet sleep mode is perfect for bedroom use. However, some drawbacks include the potential for higher energy consumption due to its 24/7 operation and the need for regular maintenance and filter replacements, which might add to long-term costs. Despite being a bit bulky, it offers a 2-year risk-free warranty, which provides peace of mind.

Its build quality and performance make it a worthwhile consideration for those needing a powerful yet affordable air purifier for larger spaces.