Venta LW45 Airwasher Humidifier

Exceptional Year-Round Humidification with No Compromises

  • Designed to be one of the best large room humidifiers on the market, with the quality and reliability that is typical of German engineering
  • Naturally reduces large particulates such as dust, pollen and mould spores in the air, while adding exactly the right amount of moisture
  • Industry-leading cold evaporation process effectively humidifies the air to the ideal level for a healthy indoor environment, with no chance of over-humidification
  • Unlike other humidifiers, the airwasher releases no harmful white dust, mineral particles, aerosols or bacteria into the room – particulates simply can’t evaporate and are trapped in the humidifier reservoir
  • Easy to use and maintain – simply add water on a daily basis, rinse and recharge every two weeks and clean twice a year
  • Energy efficient, economical to operate, 100% recyclable and ultra-quiet – you won’t even notice that it’s on!
  • Perfect for humidifying larger rooms, small apartments or condos and open office spaces

Venta LW45 Airwasher - Product Description
Venta LW45 Airwasher - Technical Details
Venta LW45 Airwasher - Construction and Measurements
Venta LW45 Airwasher - Other Details
Venta LW45 Airwasher - Customer Reviews
Venta LW45 Airwasher - Maintenance and Cleaning Supplies

Venta LW45 Airwasher Humidifier in grey
Venta LW45 Airwasher Humidifier in white

Venta LW45
Airwasher Humidifier

Price: $499.99 CAD

On Sale – $469.99 CAD
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Add a Venta Total Care Bundle – $79.99 CAD plus FREE SHIPPING when purchased with unit. Includes 2 bottles of Venta Cleaner and 2 bottles of Venta Water Treatment Additive.

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Capable of humidifying large spaces with ease, the Venta LW45 Airwasher is the most popular model of the Venta humidifier line. Through its simple but innovative design, the German-built Venta LW45 works in harmony with your home’s heating and cooling system to rehydrate the air safely and effectively. Not only does the Venta LW45 Airwasher add precisely the right amount of moisture to the air, but it also helps to naturally reduce pollutants and allergens in your indoor air at the same time!

The Venta LW45 Airwasher works through the natural process of cold evaporation, which is widely recognized as the safest method of indoor air humidification. This industry-leading technology ensures that the air simply takes what it needs to maintain a healthy indoor environment, with no chance of over-humidification, which can encourage the growth of mould or mildew in your home.

FACT: Breathing dry air is harder on the lungs and makes it more difficult for oxygen to enter the blood, resulting in tiredness, headaches and reduced concentration.

The design of the Venta LW45 Airwasher is nothing short of brilliant. Dry room air is drawn into the top of the airwasher by a whisper-quiet motor and directed over two disk stacks that rotate in and out of the water in the bottom of the humidifier. Dust and other particulates in the air adhere to the wet disk stacks of the Venta LW45 and drop into the water reservoir where they become trapped, leaving only clean pure water to evaporate off the disks back into the room.

The cold evaporation technology ensures that nothing leaves the Venta LW45 Airwasher except clean humidified air, as harmful particles, bacteria and allergens simply cannot evaporate. Unlike vaporizer and ultrasonic humidifiers, the Venta LW45 humidifier emits no bacteria, white dust, fine mineral particulates or aerosols that can potentially cause lung damage or respiratory diseases. In fact, independent tests conducted by TÜV Nord in Germany verify that Venta Airwashers release no particles or aerosols capable of entering the lungs into the room, making them an ideal choice for health-conscious individuals or those with allergies.

FACT: Dry room air helps the flu and other viruses to survive longer and spread more readily from one person to the next.

The Venta LW45 Airwasher is easy to use and maintain - simply add fresh water to the humidifier once a day. Every 10-14 days, rinse the lower housing and disk stacks of the LW45 Airwasher and then add fresh water plus 1 dose of Venta Water Treatment Additive. This additive helps to prevent calcium and lime build up in the reservoir and improves the performance of the humidifier by creating a sheeting effect on the disks that maximizes the surface area available for evaporation. The LW45 Airwasher should also be cleaned thoroughly twice a year with Venta’s specially formulated Cleaner.

Germany leads the way when it comes to green energy, so naturally the factory where Venta Airwashers are built runs 100% on wind energy, while the humidifiers themselves are made from completely recyclable components. And with no filters or cartridges to replace, operating a Venta Airwasher won’t add to environmental landfills. In addition, the Venta LW45 Airwasher is designed to be energy efficient and economical to operate, consuming only 3-8 watts of electricity.

The Venta LW45 Airwasher humidifier is ideally suited for large rooms, open offices and apartments/condos up to 600 sq. ft, as well as rooms with vaulted ceilings, fireplaces, wood stoves, hardwood flooring, tropical plants or valuable musical instruments. The Venta LW45 has a stylish European design, and is available in White or Black (Charcoal Grey). As with all Venta Airwashers, the LW45 is made from premium components, offering German quality and reliability for years to come.

Water Capacity 3 gallons
Disk Surface Area 45 sq. ft.
Room Coverage for Humidification 600 sq. ft. (on high speed setting)
Air Flow Rate 159 cubic ft. per min. at high speed setting
Air Intake Via top of unit
Air Output Via front and back sides of unit)
Decibel Level 25 dB (on low) to 42 dB (on high)
Voltage 100-240V / 50-60Hz
Power Consumption 3 watts (on low) - 8 watts (on high)
Number of Speeds 3
Cord Length 6 feet
Safety Approvals UL approved
Ozone/Ion Emissions None
Auto Shut-Off Yes
Electronic Water Level Indicator Yes
Housing Construction High impact plastic
Access for Water Filling Top-housing simply lifts off for easy filling
Interior Access Two locking latches located on the top of the unit release to allow easy access to entire interior for cleaning. No tools required.
Maneuverability Light-weight. Optional trolley
Dimensions 17.7” (length) x 11.8” (width) x 13.0” (height)
Operating Weight 13 lbs. when empty
Shipping Weight Approx. 15 lbs.
Annual Maintenance Costs If used for 6 months per year:
Venta Water Treatment Additive $30
Venta Cleaner $19
Optional Accessories Trolley ($70)
Warranty 2 years
Place Manufactured Germany
Available Colours Black, White


“I couldn’t be happier with my two Venta LW45 Airwashers. Brilliant and simple design, very high quality, very effective, really easy to fill and clean and they totally go with my decor. They look fabulous! They increased my relative humidity from 15% to 30% very quickly (even during the very cold weather when my heat was coming on a lot). Then I put some weather stripping around my front door, and it’s now holding at around 40%. I purchased the Venta LW45s to reduce the shrinking of my hardwood flooring in the dry winter months, and the gaps in my floors are now tightening nicely.”
Alan B., Toronto, ON

“I have set up my Venta LW45 and am literally blown away by how quiet it is! I was aware that Europeans (especially Germans) place a very high value on peace and quiet and don’t tolerate noisy appliances, but the contrast to the humidifier unit I bought recently was like day and night - think of a pedal bike compared to a Harley Davidson. The Venta unit is truly non-invasive in my home. I have only been running it for couple of days but am already very pleased. My eyes are far less irritated, dry and scratchy, as is typical in our severe Alberta winters. The humidifier I bought a few months ago (which didn’t meet expectations) is already boxed up for garage sale season! Appreciate your patient advice which reflected commitment and product knowledge – so tough to find online.”
Johanna W, Edmonton AB

“This past fall we purchased two Venta Airwasher humidifiers. The larger Venta LW45 unit we use downstairs and the smaller LW25 Airwasher one in our bedroom upstairs. Our main heat sources are wood fireplace and electric. In past years we have tried various types of humidifiers and they can never get the humidity above a reading of 25 and they either require constant filter replacement or they generate a white "dust". The Venta Airwasher in our bedroom sustains humidity in the 50's and the one servicing our main floor (900 sq ft) sustains 45+. This is the first winter that my wife has not suffered from sinus issues. I should mention that we also have an IQAir MultiGas GC air purifier that we purchased from you downstairs and a Blueair 403 in our bedroom, and we are equally happy with these. Finally, there is virtually no maintenance required and all units are very quiet.”
S. Burton, South Bruce Peninsula, ON

“I recently purchased a Venta LW45 humidifier and two Blue Pure 211+ air purifiers from you. I have set up both products and would comment that they are quiet, well-built and seem to be effective so far. Although it’s too early to comment completely on effectiveness, after two nights of sleeping in a room with both the Blueair and Venta units operating, I would say that my seasonal rhinitis shows signs of improvement, and therefore both breathing and sleep quality are improved. I will also say that I was pleased to find your business online. Your prices were very fair, and better than Amazon, you were there to answer the phone! Thank you for your emails along the way and follow-up throughout the process.”
R. Fowler, Mississauga, ON

“I have been SO happy with the Venta Kuubel XL-T Humidifier/Air Purifier combination unit and Venta LW45 Airwasher that I purchased from you. In fact, I’ve decided to get an Venta LW25 as well!”
M. Sherman, Toronto, ON

“We received the Venta LW45 humidifier several weeks ago and so far, I love it. I assume that it is humidifying and cleaning the air as it should, but what I like best about it is that it is simple. One box, limited number of buttons, fills and cleans easily, and I can even see how it is working - such a simple method, like a waterwheel at an old mill. I don't have all kinds of choices that I don't need and best of all, it can run 24/7 which no other humidifier that I have ever had was permitted to do!”
Deborah G, Toronto, ON

“The Venta LW45 humidifier I purchased from you is pretty awesome. My violin has its own little humidistat in its case, and it has moved from 'very dry' to 'normal' in the 4 days we have been using the machine. Nice work. Now we just have to get the piano to feel a bit better too :)”
Enda S, Orillia, ON

“Just wanted to let you know that my Venta LW45 Airwasher was delivered several days ago. Even after just a few days, I do notice a difference in humidity in the apartment. I also want to thank you for the personal touch you add to the purchasing process, and for making this transaction effortless and satisfying. If and when I require other air quality products, I will definitely be coming to Modern Alchemy.”
Robert P., SK

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Modern Alchemy Air Purifiers is 100% Canadian-owned, operating out of Ottawa, Canada. We proudly serve Vancouver, Calgary, Edmonton, Regina, Winnipeg, Toronto, Montreal, Halifax, St. John’s and all points in between. We also ship our Venta humdifiers anywhere within the contiguous United States.

To order by phone, or for more information, call: 613-894-0331
Toll Free: 1-877-467-7873

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