Airthereal AGH400 vs Levoit Core 600S-P: Which Large-Room Air Purifier Is the Smarter Buy?

Editor’s note: Price comparisons are based on the current respective website MSRPs as of 10/21/2025. Prices may change in the future or if purchasing from other retailers. 

Choosing an air purifier for a large living room, basement, or open-concept space comes down to two things: how much air it can move, and how much value you get for the investment. The Airthereal AGH400 and Levoit Core 600S-P are both strong options for bigger spaces, but when you compare coverage, filtration strength, and long-term cost, the AGH400 gives most people more purification for their money.

The Airthereal AGH400 offers wider coverage, pet-friendly features, and powerful purification performance at a significantly lower MSRP.

The Levoit Core 600S-P delivers reliable results with smart automation, but at nearly twice the price, its advantages are most appealing to users who specifically want voice controls or auto mode above all else.

Key Specs Side by Side

Why Airthereal Has the Advantage

The AGH400 is engineered for wide coverage and high airflow, making it ideal for open layouts and shared family spaces where air needs to circulate quickly. Its washable pre-filter is a major plus for pet owners, catching hair and dander before it reaches the HEPA layer. This helps maintain peak performance while reducing the frequency of filter changes over time.

The H13 True HEPA filter targets microscopic particles, while the AIR.ai app with real-time PM2.5 tracking gives users measurable proof of cleaner air. At nearly half the price of the Levoit model, the AGH400 offers a stronger performance-to-cost ratio, especially for households that want consistent, whole-room purification rather than premium smart-home extras.

Where Levoit Performs Well

The Levoit Core 600S-P provides solid airflow and dependable daily purification, especially in medium-to-large rooms. Its odor-reducing carbon filter and smart automation features can be convenient for users who prefer a purifier that adjusts itself based on air quality readings.

However, its most noticeable difference is cost. While it performs well, its higher MSRP makes it a better fit for buyers who prioritize app automation and voice control more than maximum room coverage or long-term value.

Which One Is the Better Choice?

Choose the Airthereal AGH400 if you want more coverage, strong purification power, and pet-friendly filtration at a price that makes long-term ownership easier. For most large-space environments, it delivers the best blend of strength, simplicity, and savings.

Choose the Levoit Core 600S-P if smart automation features are your top priority and you primarily need to purify a medium-to-large enclosed room rather than an expansive open layout.

Final Takeaway

Both models are capable purifiers, but the Airthereal AGH400 stands out as the smarter investment for large rooms and pet-friendly homes. With wider coverage, powerful airflow, and a much more accessible price, it delivers exceptional value without compromising clean air performance.

Breathe easier with the AGH400. Shop now and purify your whole home.