Honeywell - HWM845 Warm Mist Humidifier with Essential oil cup, Filter Free - Black
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About This Item
- Key Specs
- Maximum Recommended Room Size: 270 square feet (The maximum recommended area size in which the product is designed to operate and produce optimal results. Generally, running a unit too big or too small for the space will result in ineffective operation and wasted energy.)
- App Compatible: false (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Wireless Connectivity: None (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Reservoir Capacity: 4 quarts
- Humidifier Type: Warm Mist, Warm Mist
- Low-Water Indicator: true
- General
- Brand: Honeywell
- Model Number: HWM845B
- Product Name: HWM845 Warm Mist Humidifier with Essential oil cup, Filter Free
- Color: Black
- Dimensions
- Maximum Recommended Room Size: 270 square feet (The maximum recommended area size in which the product is designed to operate and produce optimal results. Generally, running a unit too big or too small for the space will result in ineffective operation and wasted energy.)
- Product Height: 12 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 10.5 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Depth: 6 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
- Product Weight: 4 pounds (The out of box weight of the item.)
- Compatibility
- App Compatible: false (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Wireless Connectivity: None (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Capacity
- Reservoir Capacity: 4 quarts
- Features
- Humidifier Type: Warm Mist, Warm Mist
- Low-Water Indicator: true
- Adjustable Humidistat: true (A humidistat is a measuring device able to monitor and maintain a set level of humidity, or moisture, in the air.)
- Antimicrobial: false
- Number of Output Settings: 4
- Warranty
- Warranty - Parts: 3 years
- Warranty - Labor: 3 years
- Other
- UPC: 328785001334
This Honeywell Warm Mist humidifier delivers a soothing warm mist to provide relief from dry air discomforts. Quiet, filter-free operation allows long-lasting use without the costs of replacing a filter. Essential oil feature allows use with your favorite essential oils or with liquid inhalants. Essential oils sold separately.
Whats Included
- Honeywell 1 Gal. Warm Mist Humidifier
Q: How many output settings does the humidifier have?
A: The humidifier has 4 output settings.
Q: Can I use essential oils with this humidifier?
A: Yes, the humidifier has an essential oil feature that allows you to use your favorite essential oils or liquid inhalants.
Q: Does this humidifier have a low water indicator?
A: Yes, it has a low water indicator.
Q: What is the maximum room size this humidifier can handle?
A: This Honeywell humidifier is recommended for rooms up to 270 square feet.
Q: Does this humidifier require filters?
A: No, this is a filter-free humidifier.
Q: What is the reservoir capacity of this humidifier?
A: The humidifier has a 4-quart reservoir capacity.
Q: Do you need to use distilled water? If not does the humidifier filter the water?
A: I used this Honeywell humidifier almost daily for 2 months (late winter + early spring), and I used tap water which resulted in accumulation of white mineral dust. I also cleaned the unit after each refill. I should have used distilled water, but I was lazy :( I'm not sure if I have hard water in this area (Northern Oregon). This humidifier doesn't use a filter as it is ultrasonic (no fan), not the evaporative kind of humidifier.
Q: What kind of filters does this humidifier use and what is their average cost?
A: We appreciate your inquiry. This model is a warm mist unit and does not utilize a filter. We hope this information is helpful. If you have any questions please contact us by emailing SocialSupport@kaz.com. Thank you.
Reviews
Rating 4.3 out of 5 stars with 1125 reviews
- Ease of use (208)
- Overall Performance (154)
- Size (103)
- Noise Level (89)
- Warm Mist (54)
- Smell (23)
- Cleaning (15)
- Dryness (8)
- Heating Element (7)
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
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This Honeywell Warm Mist humidifier delivers a soothing warm mist to provide relief from dry air discomforts. Quiet, filter-free operation allows long-lasting use without the costs of replacing a filter. Essential oil feature allows use with your favorite essential oils or with liquid inhalants. Essential oils sold separately.

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| Pros for Honeywell - HWM845 Warm Mist Humidifier with Essential oil cup, Filter Free - Black | |||
|---|---|---|---|
| Ease of use, Overall Performance, Size, Noise Level, Warm Mist | There were no pros for this product— | Ease of use, Overall Performance, Noise Level, Humidity Control, Water Tank Size | Size, Ease of use, Noise Level, Performance, Humidity |
| Cons for Honeywell - HWM845 Warm Mist Humidifier with Essential oil cup, Filter Free - Black | |||
| Cleaning, Smell, Dryness, Heating Element | There were no cons for this product— | Cleaning | Essential Oil Diffusion |
































































