Venta LW45 Plus Airwasher

Our Expert Rating:

The Venta LW45 humidifier & airwasher's technology both humidifies and cleans the air.This airwasher is designed for an office or bedroom, operating up to 800 square feet. Fast, free shipping and 30-day no-hassle return policy. Includes a 10-year manufacturer's warranty.

Venta LW45 Airwasher

Tank holds 3 gallons of water. 3-speeds. Only 8 watts. Covers up to 800 square feet. Includes two 1.75 fl. oz. bottles of Water Treatment additive.

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The Venta LW45 offers a tremendous value for those looking to humidify and clean the air in a large room. Its 2-in-1 design offers evaporative humidification in addition to removing large airborne particles from the air. The Venta LW45 airwasher works without the need for filters, pads or cartridges. Air is drawn over a series of internal disks that collect airborne impurities which are then trapped in the water. The Venta LW45 will help to effectively eliminate large-sized allergens as well as common household odors. The unit holds up to 3 gallons of fresh, cool water and is easy to fill and refill. The ultra-quiet, 3-speed LW45 airwasher is designed for the living room or any space up to 800 square feet. Venta manufactures their products in Germany to ensure a high quality product that will last for many years. Includes a 10-year manufacturer's warranty.

  • Combination humidifier and air washer
  • Traps and removes large particles: pollen, dust, pet hair and household odors
  • Water tank: 3 gallon capacity
  • Near silent operation: 42 dBA on high
  • Low water indicator
  • Auto shut-off when out of water
  • Easy to fill and operate
  • No cartridges or filters to clean or replace
  • Easy to clean and maintain
  • 3 fan speeds
  • Energy efficient - 8 watts
  • Colors: Black or White
  • 10-year manufacturer's warranty
  • Made in Germany

Black 2



The Venta LW45 Plus airwasher offers a unique yet simple technology. The airwasher works without filter pads. Dry indoor air is drawn into the appliance and passes through the disk stacks rotating in water. Impurities in the air, stale tobacco smoke, household dust, pollen and allergens stick to the collection disks and are then trapped in the water. Simultaneously, clean water evaporates into the air, raising your relative humidity. The Venta-Airwasher works on the principle of natural evaporation which is considered one of the best methods of humidification.

Every 14 days rinse lower housing and disk stacks with warm water. Wipe lower housing and fan blade with soft cloth. Recharge with the recommended dose of water treatment additive and fresh tap water.

Venta airwashers are constructed with sustainably in mind. Low power consumption and the drive for even greater energy efficiency are constantly optimized. Customers can expect a long lifetime and low maintenance when acquiring a Venta product. This is how Venta machines reduce costs in the long run. Made in Germany.
1. Room Coverage
2. Level of Quietness
3. Filter Life & Cost of Replacement Cartridges
4. Amount of Maintenance Required
5. Anti-bacterial Features
6. Ease of Filling
7. Ease of Operation and Filter Replacement
8. Quality of Construction
9. Humidistat to select desired humidity level & hygrometer to display the actual humidity in the room Not Applicable
10. Frequency of Filling
11. Value for Price

The Venta LW45 may be the perfect solution for those looking to humidify a large space. This model effectively operates in a room up to 800 square feet which makes it appropriate for those with large, open common areas in the home or office.Additionally, the LW45 cleans the air that you breathe with its unique, internal air washing disks.


  • Economical 2-in-1 humidifier and air washer
  • Traps and removes large particles: pollen, dust and pet hair
  • Very quiet operation
  • Easy to operate with manual controls
  • Low water indicator lets you know when to refill
  • Features auto shut-off function when out of water
  • Easy to fill
  • Easy to clean
  • No cartridges or filters to clean or replace
  • Energy efficient: less than 8 watts
  • High quality: Made in Germany


  • Air cleaning function cannot compare to purifiers with a HEPA filter
  • Does not have a built-in digital humidistat


This 3-speed humidifier and air washer is quiet, effective and offers a tremendous value for our customers. The product testers at really appreciate the Venta airwashers' simple, easy to use design. An airwasher has one big advantage over your basic humidifier, it humidifies as well as cleans the large allergen particles from your air. It does not clean anywhere close to a HEPA standard but we feel that folks on a budget will benefit from this money-saving design. The entire Venta Airwasher lineup is well made and designed to last for many years of use.

Venta LW45 Airwasher


Venta LW45 Airwasher

Technical Specifications of Venta LW45 Airwasher

  Venta LW45 Airwasher
Room Coverage
Room Coverage Up to 800 sq. ft.
Tank Capacity
Tank Capacity 3 gallons
Auto Shut-Off
Auto Shut-Off Yes
Noise Level
Noise Level Speed 1-3: 25, 37, 42 dBA
Power Supply
Power Supply 100-240V/50-60Hz, 8 watts
Weight 11 lbs.
Dimensions 17.7"H x 11.8"W x 13"D
Warranty 10 years

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