Levoit Classic 200

Pros

• +40-hour runtime on low — the best runtime-per-dollar in the desk category
• +Under 30dB at low setting — effectively silent in a working office environment
• +$30 price point makes this a non-decision for most desk setups
• +Auto shut-off is reliable per owner review consensus
• +Compact cylindrical footprint under 8" diameter fits beside a monitor

Cons

• −Ultrasonic technology disperses mineral dust — distilled water required near monitors
• −4L tank is wider than product photos suggest — measure desk space before ordering
• −No humidity sensor or auto-mode — manual output control only
• −Lid-fill design requires two hands to refill