Noise Level Test: How Quiet is the Levoit Sprout Really?

An air purifier is a fantastic investment in your home's health, but its benefits can be quickly overshadowed by one major annoyance: noise. A loud, humming appliance can disrupt sleep, ruin concentration, and add unnecessary stress to your environment. The Levoit Sprout promises powerful purification in a compact form, but the crucial question remains—is it quiet enough for daily life? At Consumer's Best, we believe in testing products in real-world conditions. We put the Levoit Sprout through a rigorous noise level test to give you the definitive answer.

Understanding Decibels in Your Home

Before we dive into the numbers, let's contextualize what they mean. Sound is measured in decibels (dB). A quiet library is around 30 dB, a soft whisper is about 20-25 dB, and a normal conversation sits at approximately 60 dB. For an appliance that will likely run for hours on end, especially in a bedroom or office, every decibel matters. The ideal air purifier should blend into the background, cleaning your air without making its presence constantly known. The difference between 25 dB and 45 dB is the difference between peaceful silence and a noticeable hum.

Our Testing Methodology

To ensure our results are accurate and reliable, the Consumer's Best team conducted this test in a sound-controlled room with an ambient noise level below 18 dB. We used a professional-grade decibel meter placed one meter away from the Levoit Sprout. We measured the sound output on each of its primary operational settings—Low, Medium, and High—letting the unit run for five minutes on each setting to get a stable reading. This process allows us to isolate the noise produced solely by the purifier and provide you with data you can trust.

Levoit Sprout Noise Level: The Results

Our tests revealed a significant range in the Sprout's noise output across its settings. On its lowest setting, the purifier registered an impressive 24 dB, which is genuinely whisper-quiet and unlikely to be noticed in most environments. On the medium setting, the noise increased to a more audible 35 dB, comparable to the hum of a modern refrigerator. At its highest setting, the Levoit Sprout produced 48 dB of sound, which is clearly audible but falls short of being disruptive, similar to the sound of light rainfall. These figures show a well-engineered balance between air-moving power and acoustic comfort.

The Verdict: A Quiet Companion for Clean Air

Based on our hands-on testing, the Levoit Sprout is indeed a very quiet air purifier, especially on its low setting. At 24 dB, it is perfectly suited for light sleepers, quiet offices, and any space where peace is a priority. While the higher settings are more noticeable, they provide a powerful burst of filtration when needed without becoming overly intrusive. The Sprout successfully delivers on its promise of quiet operation, making it a strong contender in the small-space purifier market. For a complete analysis of its filtration effectiveness and other features, find our full in-depth review of the Levoit Sprout at Consumer's Best.