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Venta® Original LW45 Humidifier in White

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Venta® Original LW45 Humidifier in White. View a larger version of this product image.
Venta® Original LW45 Humidifier in White. View a larger version of this product image.
Venta® Original LW45 Humidifier in White. View a larger version of this product image.
Venta® Original LW45 Humidifier in White. View a larger version of this product image.
Venta® Original LW45 Humidifier in White. View a larger version of this product image.
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about the product

For spaces up to 600 square feet, the Venta LW45 Humidifier humidifies dry indoor air using evaporative humidification. By humidifying indoor air without the use of filters, the Venta Humidifier is hygienic, simple to use, and easy to clean.
  • Designed for spaces up to 600 square feet
  • Healthy air humidified to an optimal 40-60%
  • Cold evaporative humidification without the use of filters
  • Safe for use with tap water
  • Naturally reduces harmful pollutants in the air at a humidity level of 40-60%
  • 3-gallon water reservoir
  • 2-year warranty
  • Measures 17.7" D x 11.8" W x 13" H
  • Made in Germany
  • skuId: 41361528



shipping & returns

Please be aware we've temporarily extended our delivery time frames due to Covid 19 precautions at our facilities. The extended time frames will be reflected in the estimated delivery date shown at checkout.

Free Standard Shipping on Orders Over $39

Free Standard Shipping with any online purchase of $39 (merchandise subtotal excludes store pick up items; merchandise subtotal is calculated before sales tax, before gift wrap charges, and after any discounts or coupons). Truck delivery and shipping surcharges on over-sized or extremely heavy items will still apply (these charges are indicated on the appropriate product information pages and will be displayed in the shipping subtotal of your order). Orders typically arrive within 3-6 business days. Items shipped directly from the vendor or to Alaska and Hawaii have longer delivery lead times. This offer does not apply to Alaska, Hawaii, Puerto Rico or Business Direct orders.

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Ratings & Reviews

Ratings Snapshot

95 reviews ·

Would Recommend

61 recommendations





Ease of Use


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Most Helpful Positive Review
You get what you pay for. Nickname ·
Recommended Not Recommended

I've bought many noisy filter type humidifiers and their replacement filters. Also different ultrasonic types that left white dust on absolutely everything. I bought the LW45 and one LW25 to cover my 2500 sq ft house. I'm happy to say they are maintaining the humidity without wet windows and that clammy feeling. I've wasted more for filters and inefficient units than the cost of these two Ventas over the years. My advice is to bite the bullet day one and buy this product. It just works, no filters, easy to fill and maintain. It's quiet even on the high setting, and once the humidity is up it maintains it on the quiet lowest setting. The LW25 is 3 feet from my head in the bedroom and on the lowest setting I don't even hear it yet it maintains the humidity level overnight. It is easy and quick to clean, no lime buildup or change in output due to filters hardening. My brother has had one trouble-free for 6 years now. You get what you pay for...





Most Helpful Critical Review
I want to love this... josephmarkdavis ·
Recommended Not Recommended

...but I don't think "German engineering" means what perhaps it once did. The long and the short of it? It works inconsistently. When it gets the humidity up into the 40% range seems to be when the temperature outside is in the 40's. When it's cold out though it does not work as well. I bought this because I live in Boston and I have forced air heating so the air is really dry in the winter. I live in a hi-rise and the room it's in is in the 5-600 square foot range. I have a lot of wood in there with parquet floors, a piano and guitars. When it's really cold out sometimes it barely gets above 16-20%. I bought 3 humidity gauges to make sure it was the unit and not a bad gauge. I like that it cleans the air a bit. I like that it's quiet. It's easy to operate and does not leave residue... but it doesn't humidify well enough when the weather is really cold. Customer service is good about calling you back... but the expertise of the reps varies widely. I am recommending this... barely... because right now it's working well but it's also 48 degrees outside right now. I tried a more traditional and less expensive unit though and it didn't work so I am going to stick with this for now. But if I could give this a 2 1/2 star review and be neutral about recommending it that would be more accurate.





Customer Reviews

Showing 8 out of 95 reviews



what I’ve always hoped for pbird ·
Recommended Not Recommended

After years of using humidifiers that required distilled water and were still hard to keep clean from mold and mineral deposits, I discovered Venta. It was more expensive than other humidifiers, but it’s more than worth it. You just add tap water once a day to keep it full. Every two weeks you dump the water, rinse it out and add new water and water treatment. At the end of the season you put in a bottle of cleaning solution and run it for a few more hours and then rinse it really well and let it dry and put it away. That’s it. And this machine kept a large open area (living room dining room kitchen and sunroom) in our house around 50% humidity all winter. We have a smaller one in the master suite. I wish I had found Venta years ago. And BB&B has the best prices around for the machines and the water treatment and cleaning solution.

I love this thing! Ms Nance ·
Recommended Not Recommended

I used this all through the winter (2021) to help clean the air and to help humidify the air. It works nicely for both. No filters to clean or buy.

Purifies and humidifies Johnna ·
Recommended Not Recommended

This Venta humidifier is an amazing product. Since purchasing, I have gone two weeks without dusting the house and there is still no dust or humidifier residue anywhere in the house. It also humidifies well without making things around it feel damp or moist at all. I have not been bothered by my allergies since starting to use this humidifier/air purifier. It is expensive but well worth the expense. We highly recommend.

Best price we've found. CarliMay ·
Recommended Not Recommended

This does the job for our venta airwasher.

So far so good Timo ·
Recommended Not Recommended

Quiet running and seems to be doing a good job. My wife is happy and that is the main thing.

It simply does not work BB&B Customer ·
Recommended Not Recommended

Everyone was done correctly and the machine would not run. No one from Buybuy Baby can help with the technicals.

Quality product BB&B Customer ·
Recommended Not Recommended

As good as they were a decade ago. This product lasts

Quietly does its job Pbird ·
Recommended Not Recommended

After years of struggling with other humidifiers, cleaning, descaling, disinfecting, wiping up white dust, etc, I am so glad I've found the Venta Airwasher. It quietly does its job, and all I have to do is add water daily and change the water and add treatment additive every 2 weeks. It keeps the humidity up above 50%, and cleans the air to boot. Yes, it's more expensive than other humidifiers I have used, but they were more of a project than they were ever worth, and never lasted more than 3 years. Definitely worth the money, especially if you struggle with sinus problems.

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