Best Humidifier Reviews

Air Innovations MH-505-BLUE Humidifier Review

Air Innovations MH-505-BLUE Humidifier Review

The MH-505-BLUE from Air Innovations looks like an air fryer, except that it doesn’t come with a handle, and its sole purpose is to balance the moisture of your home. Its water tank has a capacity of 1.37 gallons, and it’s expected to run up to 70 hours.

But is this humidifier any good? What do previous buyers say about their unit? To give you the answers, here’s our Air Innovations MH-505-BLUE humidifier review.

Note that there’s a purple version: Air Innovations MH-505-PURPLE.

Main Features of the MH-505

Here’s a list of what to expect.

One, it’s designed for medium to large rooms that measure up to 400 square feet. It has a water tank with a 1.37-gallon capacity, which is advertised to run for 70 hours. That translates to almost 9 nights before a refill is done.

Two, it comes with a simple-to-use control panel. Although it’s not the most sleek- or modern-looking, it gives you buttons that allow you to control the following functions: Auto-ON, mist output (low, medium, high), timer (up to 24 hours), humidistat (set the desired humidity level), LED dim (turns off the display at night), and a low water indicator.

Three, the Air Innovations MH-505-BLUE comes with a 360-degree rotating mist nozzle and a permanent ceramic filter. There’s also a built-in handle on the top and bottom of the water tank.

As you can see, all these features and functionalities are truly useful.

Technical specs include the following: 3.5 lbs (product weight) and measures 14.2 x 7.5 x 10.2 inches (L x W x H) (dimensions).

Also read: Oreck WK15500B Air Refresh Air Purifier Review

Pros and Cons of the Air Innovations MH-505

In this section of our Air Innovations MH-505-BLUE humidifier review, we give you what previous buyers have to say about their unit.

Noise Level

As advertised, the Air Innovations MH-505-BLUE is an ultrasonic humidifier. Theoretically, it should be quieter than evaporative types. So the question is, is it really?

The general feedback is that yes, it is quiet. You will hear a gurgling sound or noise from time to time, which is caused by the exchange between water and air bubbles.

Note that based on feedback from several previous buyers, this humidifier ay get noisier as time goes by.


It does an amazing job keping moisture in the air especially in winter when the air tends to be dry. Although it’s advertised to be able to humidify a large room, several previous buyers say it’s best used in small to medium-sized living spaces.

There have been several reports of the Air Innovations MH-505-BLUE helping improve sinus problems.

It’s also very simple to use and easy to clean.


  • This humidifier is the “bottom-fill” type, which can be quite an inconvenience to some who prefers a top-fill tank.
  • It doesn’t have a separate compartment for essential oils.
  • This humidifier releases only cool mist.
  • It doesn’t have a memory feature. Meaning, when you turn it off, it returns to the default settings, so you’ll have to punch in your preferences when you put it back on.
  • There have been reports of the filter getting “icky” fast – it grows mildew quickly. That said, you’ll have to do frequent cleaning to ensure that this humidifier is always clean.
  • Some people say that they don’t think their unit works because on the display, it always has the same current humidity level.

Also read: NUK Hepa-Type Air Purifier Review: Who Is This For?

Our Recommendation: Air Innovations MH-505-BLUE Humidifier Review

Should you get one for yourself? Here’s what we have to say.

Purchase the Air Innovations MH-505-BLUE with reservations. It works when it works, even helping you deal with sinus problems. However, several people have reported that their unit is stuck at only one current humidity level, which feels like their unit is broken or not working.