Oreck WK15500B Air Refresh 2-in-1 HEPA Air Purifier Review

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The Oreck WK15500B HEPA Air Refresh consists of both HEPA Purifier and Ultrasonic Humidifier in a single unit. This saves space and money.

The humidifier and purifier are suitable for rooms up to 115 square feet. This purifier is more for bedside use. This unit is ideal for small homes or nursery environments.

A 2-in-1 humidifier and purifier have the biggest drawback: it needs to be cleaned and maintained more often.

For our complete review of the Oreck WK15500B air refresh, please read on.

You don’t need a humidifier or air purifier in a 2-in-1 configuration. Instead, check out our reviews of top-rated HEPA purifiers.



Best Features

Air Refresh 2-in-1 HEPA Air Purifier

1. 2-in-1 Functionality

Dual functionality makes the Oreck WK15500B an exceptional air purifier. It is not for everyone, however.

The Oreck WK15500B air refresh can help with dry and polluted indoor air.

It can improve the breathing of people suffering from asthma and allergies.

Dry air can make these conditions worse. However, high humidity can also be bad for allergies and asthma, so make sure not to moisten the air.

We love it because you can turn off the humidifier and leave the purifier on. In addition, you can turn the humidifier off if the air is too humid, as in summer.

Ultrasonic humidifiers use ultrasonic vibrations to produce a cool mist.

The fan that circulates purified air throughout the room also distributes the mist, keeping it from pooling in the vicinity of the air purifier.

This air purifier features a 2-stage design.

HEPA filters can remove fine allergens such as pollen, dust mites, and mold spores. In addition, the charcoal filter absorbs mild odors.

2. Control Panel

The control panel is easy to use and well-designed. You don’t have to worry about dirt sticking underneath the touch buttons as they are easier to use than physical buttons.

You will find five buttons to turn the humidifier on/off, on/off, humidity, sleep mode (lower fan speed and dim display), and timer.

You can see the settings currently being used on the LCD screen. The screen also displays the remaining life of each filter via an intuitive life bar.

The display indicates the current humidity and the target humidity when the humidifier is on.

You will be notified by the display (by flashing) when the filters need replacing or when the water tank for your humidifier is low.

3. Four Fan Speeds

You can choose from four fan speeds by pressing the speed button on your control panel: turbo, medium, high or low.

The fan speed controls the air purifier’s speed and power.

Turbo Mode can be activated to quickly clean the air if a sudden amount of cigarette smoke or the wind blows in pollen and dust.

Reduce fan speed when the air is clean to reduce power consumption and fan noise.


Air Refresh 2-in-1 HEPA Air Purifier

You should look into a stronger air purifier if you need to remove wildfire smoke from your home or noxious cooking smells from neighbor’s houses.

The Oreck Air Refresh is more effective with mild odors, low to moderate levels of allergens, and pollutants.

It only has two filters and not the four or five found in high-performance air purifiers.

Its coverage is another limitation. It is only suitable for small rooms. The Oreck WK15500B air refresh is ideal for use in rooms of up to 115 square feet. This is not a room purifier that you can use in your living area, but rather a personal air purifier that you can use in your bedroom or home office.

Many users don’t like the requirement of weekly maintenance, which means you need to keep plenty of 3% hydrogen Peroxide.

We believe that the Oreck WK15500B is a poor choice for you because of its high price and limited coverage.



The Oreck WK15500B is a great choice for those who don’t mind paying a little more. It’s a 2-in-1 humidifier and air purifier that you can use in your home.

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