Homasy Cool Mist Humidifier Diffuser HM510A Quick Review

An affordable cool mist humidifier for everyone. Homasy HM510A is a reliable cool mist ultrasonic humidifier with essential oil diffuser. Unlike other brands that sell all kinds of appliances, Homasy specializes in aromatherapy machines and essential oils. It is designed to improve your sleep quality, skin condition, and alleviate allergies simply by adding moisture into the air. But is this the best cool mist ultrasonic humidifier in terms of airflow performance? Can you use it in a children's bedroom or nursery home? Find out more in our Homasy HM510A review below.
online price (US)**
±N/A $/ 7

(annual filter cost ±0)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.
` The indicated online price guides as follows: $ = under $50, $$ = $50-100, $$$ = $101-200, $$$$ = 201-300, $$$$$ = $301-400, $$$$$$ = 401-500, $$$$$$$ = over $500.

Homasy HM510A Cool Mist Diffuser Specification

ProductHomasy HM510A Cool Mist Diffuser
7.3 x 11.6 x 7.3 in
(18.5 x 29.5 x 18.5 cm)
Weight2.9 lb (1.3 kg)
Coverage (up to)300 sq. ft. (28 m2)
Airflow speed
CapacityUp to 180ml/h
Duration per chargeUp to 30 hours
Water tank0.7 gallon (5.3 pints)
Noise level28 dB
Power consumption
Timer/ Scheduler
Refill method Top Fill
Digital display
Humidity display
Essential Oil Compatible
Auto shut off
Auto mode
More color options
Filter/ Water empty indicator
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty1 year
Email/ Phone support

Key Features

  • Adjustable 2 mist level (Low, Hi) & Sleep mode
  • Filter-free cool-mist top fill humidifier essential oil diffuser
  • 360° uniform humidification
  • 2.5L semitransparent water tank
  • Touch Control Design
  • Waterless Auto Shut Off
  • 1-year limited warranty

Design And Usability


  • Affordable cool mist ultrasonic humidifier with essential oil diffuser compatibility.
  • Applicable area up to 300 square feet despite the compact cylinder size.
  • Up to 30 hours of non-stop operation. Perfect for undisturbed sleep and moisturizing skin.
  • Very easy to use, clean and refill.
  • Automatically shut off with red LED light (can be disable).
  • Whisper-quiet operation with 28dB noise level.


  • Rather small water tank even though the volume of mist output is low.
  • Requires daily refilling if is set at high mist speed.
  • Some would prefer a full transparent water tank with better clarity.
Homasy Cool Mist Humidifier Diffuser HM510A

Max Fernandez

A humidifier distributor with more than 11 years of experience in the field, Max Fernandez is no stranger to the moisture-capturing machine. You can catch him here reviewing humidifiers and preaching on the importance of perfect humidity.

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