Venta LW45 Airwasher Humidifier

The Venta LW45 Airwasher is a unique 2-in-1 device that simultaneously humidifies air and removes airborne particles through cold evaporation technology. Rotating disc stacks immerse in water and slowly spin, exposing large surface areas to ambient air. As dry air passes through, it absorbs moisture naturally while dust, pollen, and other particles adhere to the wet discs and are captured in the water basin. This filterless, hygienic design requires no replacement filters and produces no mist, white dust, or over-humidification.

The 3-gallon (approximately 11-liter) water reservoir provides ample capacity for extended operation, humidifying spaces up to 800 square feet. Three fan speeds allow adjustment from whisper-quiet nighttime operation to maximum output during dry winter conditions. The integrated hygrostat automatically regulates operation based on ambient humidity, running only when needed. Cold evaporation is self-limiting—it cannot over-humidify a room because evaporation naturally slows as humidity rises.

The simple design has few moving parts, contributing to quiet operation, energy efficiency, and long-term reliability. While the LW45 is not a smart/connected device, its reliable automatic operation requires minimal attention beyond periodic water refills and bi-weekly basin cleaning with Venta Water Treatment additive (recommended for hygiene and optimal performance). The disc stack and basin are dishwasher-safe for easy maintenance. German engineering and manufacturing ensure quality construction, and the unit includes a 10-year warranty on the housing.