LEVOIT LUH-O451S-WUS Smart Warm and Cool Mist Air Humidifier: Warm and cool mist for rapid symptom relief
For the parent whose child wakes up with a dry cough every winter morning, this humidifier offers more than just moisture—it’s a tool for uninterrupted sleep and easier breathing. While many focus on room coverage, we see it as a quiet guardian that lets you rest without constant refills or noise disruptions.
The auto mode adjusts humidity so precisely you might notice your skin feels less itchy by the second day. Its top-fill design means no spills when you’re refilling half-awake at night, and the smart app lets you schedule it to start before bedtime, so the air feels just right when you tuck in. This isn’t just a humidifier for large rooms; it’s your partner in creating a healthier, more comfortable home environment with features like essential oil compatibility and fast symptom relief.
Features
- Auto mode maintains 40-60% humidity
- Smart app control with scheduling
- Easy top-fill 1.2 gallon tank
- Quiet operation for bedrooms
- Essential oil diffuser compatible
- Warm and cool mist for rapid symptom relief
General specs
- Brand: LEVOIT
- Model: LUH-O451S-WUS
- Seller: Amazon
- ID: B0B1DQ8KV3
- Weight: 2404.04
- Mist Type: Warm & Cool Mist
- Dimensions: 6, 11.97, 10.8
- Connectivity: Wi-Fi
- : Yes
- Control Method: App
- Water Tank Capacity: 0.16
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
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Price History for seller Amazon
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| Brand | LEVOIT | LEVOIT | LEVOIT | CLEVAST | Pharata | Dreo |
| Model | LUH-O451S-WUS | LUH-D301S-WUS | Dual 200S | CL-HD02 | 10052A | DR-HHM001S |
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| Price | $75.99 | $54.99 | $49.99 | $27.98 | $33.99 | $49.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Feb 7, 2026 | Feb 4, 2026 | Feb 7, 2026 | Feb 7, 2026 | Feb 4, 2026 | Feb 7, 2026 |
| Weight | 2404.04 | 1400 | 1360.78 | 1088.62 | 1419.7 | |
| Mist Type | Warm & Cool Mist | Cool Mist | Cool Mist | Cool Mist | Cool Mist | Cool Mist |
| Dimensions | 6, 11.97, 10.8 | 11.81, 7.09, 7.09 | 7.1, 11.8, 7.1 | 7.26, 11.81, 7.26 | 6.7, 11, 6.7 | 10.15, 5.51, 11.02 |
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | |
| Yes | Yes | Yes | Yes | Yes | ||
| Control Method | App | App, Voice | App, Voice | App, Voice | Touch | Touch, App, Voice |
| Water Tank Capacity | 0.16 | 0.11 | 3 | 4 | 3.5 | 4 |
| Material | Plastic | Plastic | Plastic | |||
| Power Source | Corded Electric | Corded Electric | Corded Electric | Corded Electric | ||
| Humidification Method | Ultrasonic | Ultrasonic | Ultrasonic | Ultrasonic | ||
| Voice Assistant Compatibility | Amazon Alexa | Amazon Alexa | Amazon Alexa | Amazon Alexa | ||
| Filter Type | Filterless | Filterless | Demineralization Cartridge | |||
| Coverage Area | 322.92 | Large Room | Large Room | |||