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Lasko UH300 Quiet Ultrasonic Digital Warm and Cool Mist Humidifier
- Manufacturer: Lasko
- Manufacturer Part Number: UH300
- UPC: 046013738516
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Overview
Specs
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Humidifiers create a soothing atmosphere in your home. According to the Mayo Clinic, indoor humidity between 30% to 50% is ideal and can help soothe common dry air problems of the skin, throat, and sinuses. Additionally, proper humidity levels can create an atmosphere for improved sleep and reduce static electricity from dry air. Use warm mist in winter months and cool mist year-round.
The Quiet Ultrasonic Digital Warm and Cool Mist Humidifier from Lasko creates soothing humidity for your room. Aim the mist nozzle where you need it most and choose from 3 mist flow options so you can customize the humidity for your room. The large, removable tank is easy to refill at sink or tub. The humidifier runs up to 100 hours on the low setting and will automatically shut off when the tank is empty. Regular maintenance is a breeze because there are no filters to replace, plus the included cleaning brush can be stored conveniently right on the unit. Easy-to-use electronic controls for setting timer mode (12-hour timer), plus adjusting LED lighting, mist options, and humidistat. Features patented safety fuse technology. Comes fully assembled.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 90 days
- Limited Warranty period (labor): 90 days
- Read full details
Return Policies
- Return for refund until: January 31, 2026
- Return for replacement until: January 31, 2026
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.
Manufacturer Contact Info
- Manufacturer Website
- Support Phone: 1-800-233-0268
- Support Website
- View other products from Lasko
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The Lasko UH300 is a quiet ultrasonic humidifier with warm- and cool-mist settings, suited to people who want flexible humidity options for a room, plus digital controls for adjusting mist and humidity.
Recommended For
- People humidifying a larger bedroom or living area who want warm- and cool-mist options; Consumer Reports lists the UH300 for spaces up to 600 square feet.
- Bedroom users who want to run a humidifier overnight, with a directional mist nozzle, adjustable LED lighting, a timer, and a low setting advertised for up to 100 hours of operation.
- Households that want to switch between warm and cool mist depending on the season, rather than buy a single-mist humidifier.
- People who prefer a filter-free humidifier and want digital humidity settings, automatic shutoff when the tank is empty, and a removable tank for refilling.
Real-World Use Scenarios
- For overnight use in a bedroom, choose the low mist setting and set the display or night-light mode to suit the room; Lasko recommends low output for night use, and its product positioning describes the unit as quiet. The likely experience is added moisture with less bright display lighting.
- When winter heating leaves a living room feeling dry, use the UH300 to add moisture and choose warm or cool mist according to preference. Lasko positions warm mist for winter and cool mist for year-round use; the mist setting does not replace room heating.
- For a larger single room that feels dry, such as a bedroom or living room, the UH300 is positioned for spaces up to 600 square feet. Actual humidity changes will depend on the room and conditions, so treat that figure as a coverage claim rather than a guaranteed result.
- For a scheduled evening or overnight run, set the timer for 1–12 hours instead of leaving the unit on continuously. This can make it easier to limit operation; turn it off if excess moisture causes condensation on windows or furniture.
- When indoor air feels uncomfortably dry, use the adjustable humidity control to choose a target rather than running the humidifier continuously. The manual recommends a 40%–60% range and advises turning the unit off if excess humidity leads to condensation.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Humidifying bedrooms, living rooms, or home offices up to 600 square feet, with warm or cool mist options |
| Humidification And Controls | Ultrasonic humidifier with touch controls, three speeds, a timer, and a nightlight |
| Capacity | 4.9 liters |
| Power And Safety | Corded electric; 120 volts; automatic shutoff |
| Physical Specifications | White plastic rectangular unit; 14.4 in high × 9.8 in wide × 5.7 in deep; weighs 2 kg |
| Included Components | Humidifier and user manual |
| Safety Information | Combined cancer and reproductive harm warning listed on the product |
| Model Identifiers | Lasko UH300 |