10 Best Air Purifiers Under 100 2026 in the United States

The LEVOIT Vital 100 air purifier is a solid choice for those looking for an affordable yet effective air purifier. It boasts a Clean Air Delivery Rate (CADR) of 130 CFM, making it suitable for rooms up to 300 square feet. This makes it ideal for bedrooms, living rooms, and kitchens. The 3-stage filtration system, including a washable pre-filter, efficiently removes dust, pollen, and other airborne particles, which is great for allergy sufferers. Additionally, the activated carbon filter helps eliminate smoke and odors effectively.

One of its standout features is its quiet operation, with noise levels as low as 24 decibels, ensuring it won't disturb your sleep. The energy efficiency is also noteworthy, costing approximately $1.66 per week when run continuously, which is budget-friendly. The user-friendly design includes a timer function and a filter replacement indicator, simplifying its maintenance. However, it's important to note that the filters need replacement every 6-8 months, which could be an ongoing cost to consider.

Weighing 9.3 pounds and with compact dimensions, it’s easy to place this purifier anywhere in a room without taking up much space. It may not be suitable for extremely large rooms beyond its specified coverage area. For its price, the LEVOIT Vital 100 offers strong performance and useful features for maintaining clean air in medium-sized rooms.

The LEVOIT LV-H132 air purifier is a solid choice if you need an affordable device for a small to medium room (up to about 263 sq ft). It carries the AHAM VERIFIDE seal, which means its air cleaning ability has been independently tested and verified, adding confidence in its performance. The 3-layer filtration system includes a pre-filter, a main efficient filter, and an activated carbon filter, which together effectively reduce dust, pollen, smoke, and odors — making it especially good for allergy sufferers or those sensitive to smoke and pet smells.

One of the standout features is how quietly it operates, with noise levels around 28 decibels, so it won’t disturb your sleep if you leave it running overnight. Energy use is low at just 11 watts, which helps keep electricity costs down. Maintenance is straightforward with official replacement filters available (model LV-H132-RF), but using off-brand filters could harm the unit.

The purifier's room coverage is limited to smaller spaces, so it might not be effective in larger rooms or open-plan areas. While it offers a night light feature with adjustable brightness, some users might prefer multiple fan speeds or smart controls, which this model lacks. Also, the device needs about 15 inches of clearance on all sides for best airflow, so space placement might be a consideration. This LEVOIT model is a dependable, quiet, and energy-efficient air purifier ideal for bedrooms, nurseries, or offices under 300 square feet. Its verified filtration quality and low noise make it stand out in its price range, though it’s best suited for users who don’t require coverage for larger areas or advanced control features.

The Dyson PureCool Hot + Cool HP04 is a multi-functional air purifier that also works as a heater and fan, making it a versatile choice for year-round use. It uses a sealed HEPA H13 filter, which is excellent for capturing fine particles like dust, pollen, pet dander, and even volatile organic compounds, ensuring high air cleaning performance. The purifier covers up to 800 square feet, which is quite spacious and suitable for medium to large rooms.

It features advanced sensors that detect and report air quality in real-time, plus an app for remote control, adding convenience. The Air Multiplier technology helps project purified air evenly across the room. This model is refurbished and weighs about 12.4 pounds, which might be a bit heavy compared to simpler models under $100. Maintenance involves replacing the HEPA filter, which can be more costly than standard filters, especially since Dyson filters tend to be pricier.

If you are strictly looking for a budget air purifier under $100, this purifier might be more than needed. However, for those who want strong filtration combined with heating and cooling features, it offers good value in a single device.