How often do the filters need replacing?

Levoit recommends replacing the HEPA and carbon filter roughly every 6 to 8 months. In pet homes with heavy shedding, owners often replace closer to every 6 months. The pre-filter is washable and should be rinsed monthly.

Is it loud enough to disturb sleep?

On low and sleep settings it is quiet enough for a bedroom. At maximum speed it reaches 53 dB, which is noticeable, so most owners run it on auto or sleep overnight.

Does it really cover 1,100 square feet?

That rating assumes one air change per hour. For meaningful filtration in a large room, treat it as suited to roughly 500 to 600 sq ft, or keep it in a closed bedroom or living area.

Does it work with Alexa and Google Assistant?

Yes. It connects over Wi-Fi and works with the Levoit app, Amazon Alexa and Google Assistant for voice control and schedules.

The purifier, one pre-installed filter set (washable pre-filter plus HEPA and carbon filter), and a power cord. A quick-start guide is included; setup is done through the app.

How does it compare with the Winix 5500-2?

The Winix is cheaper to run on filters and has a washable carbon filter, but lacks app control. The Levoit adds Wi-Fi, scheduling and voice control, and is slimmer, at the cost of louder top speed and pricier filters.