Vicks Filter-Free Cool Mist Humidifier (V4600)


Question: How do I clean my Vicks Filter-Free Cool Mist Humidifier?


Follow the step by step instructions found in the Owner’s Manual or below on how to clean your Vicks Filter Free Cool Mist Humidifier. You can also view the How to Clean video under the Vicks Filter Free cool Mist Humidifier product page Video tab.

Scale Removal:

Turn off and unplug the unit.
Remove and empty the tank and base of any water
Remove the mist nozzle, water tank, accessories and set aside.
Fill water tank with 1 cup of distilled white vinegar, add mist nozzle, replace tank cap and place back on the base. Soak for 15-20 minutes.
After soaking, using a soft damp cloth wipe the nebulizer to remove mineral deposits
Gently rinse the water tank mist nozzle and base with water until the smell of vinegar is gone.


NOTE: Bleach may stain clothes. It is recommended that you wear rubber gloves during this
process to protect your hands.
Turn off and plug the unit.
Remove and empty the tank and base of any water.
Remove the mist nozzle, water tank, accessories and set aside.
Mix 1 gallon of water and 1 teaspoon of bleach. Pour bleach solution into tank, add mist nozzle and replace tank cap.
Place the tank on the base and let stand for 20 minutes.
Gently rinse the water tank, mist nozzle base with water until the smell of bleach is gone.

Question: How do I set up my Vicks Filter-Free Cool Mist Humidifier & what type of water should I use?


Your Vicks Filter-Free Humidifier should be filled with cool water only. DO NOT fill with warm or hot water.

To set up:

1. Remove from box.

2. Remove packaging material.

3. Set aside instruction manual.

4. Recycle packaging materials or save for storage.

5. Remove twist tie from power cord and extend power cord full length. DO NOT operate with power cord coiled or twist tie in place.

6. Select a firm, level location at least 6″ (15 cm) from any walls. Place the humidifier on a water-resistant surface.

7. Mist should be directed away from any walls, bedding or furniture.

Question: How do I set up my Vicks Filter-Free Cool Mist Humidifier & what type of water should I use?


Only Filter-Free Units will produce visible mist, Filtered units do not produce visible mist.

If you notice mist is not being released from your humidifier, check to make sure the unit is plugged in that there is water in the tank and that the unit is level. If the humidifier is still not producing mist, it could be a result of build up on the unit. Follow the Cleaning Instructions found in the Owner’s Manual, below, or visit your products detail page to view the ‘How to Clean’ video specific to each unit.

1. Please make sure the unit is turned off and unplugged.

2. Remove and empty water from the tank and then empty the base of the unit into your sink.

3. Fill the base with undiluted white vinegar (just enough to cover the nebulizer) and let it soak for at least 20 minutes. If you see a strong mineral build up, you may want to let it soak longer.

4. While the nebulizer is soaking in vinegar, take a cotton swab and wipe around the nebulizer to remove the mineral deposits.

5. Empty the vinegar and rinse the base with water.

6. Please do not run the unit with the vinegar in it.

Question: Do I need to use a demineralization cartridge with my humidifier?

Answer: If you live in an area with a high mineral content in your water and are not using distilled or purified water then you may notice atomized minerals (white dust) on surfaces around the humidifier. If this is the case then you should use a demineralization cartridge. The cartridge for this unit is model number HDC-200.

Question: My humidifier appears to be leaking, how can I fix it?

Answer: Ensure that the tank cap is securely fastened onto the tank. Next, confirm the unit is set on a flat level surface and that there are no cracks on the tank. If this does not resolve the issue, please contact Consumer Relations by emailing or calling 800-477-0457.

Question: Why is there white dust?

Answer: With an ultrasonic humidifier, a built-in nebulizer vibrates the water at ultrasonic frequency which causes the water droplets to break into a fine, cool mist that you can see. In hard water areas, we recommend using demineralization cartridges with your ultrasonic humidifier to capture minerals in the water and to help reduce white dust on surfaces.

Question: What is the white dust my humidifier is producing?

Answer: With some humidifiers the mist put out by the unit is a visible mist. These types of appliances turn the water into a mist and release it into the air. The minerals that are in the water are also in the mist being released by the humidifier. As the moisture evaporates into the air, the minerals are left behind and will settle around nearby surfaces as dust, and in most cases it is white. It is not harmful in any way; it is just the mineral contents of your water. The amount of white dust you see is directly related to the hardness of your water. To reduce the amount of white dust, use distilled or purified water or Protec Demineralization Cartridges.

Question: How does my humidifier work?

Answer: Water is released onto a nebulizer that moves at ultrasonic speeds which turns the water into a mist.

Question: Why is my unit on, but no mist is being produced?


Check to make sure that the unit is plugged in, there is water in the tank, and that the unit is level. If the humidifier still not producing mist, it could be a result of mineral deposits stuck on the nebulizer.
The nebulizer, or white circle, that you see in the bottom of the base vibrates at ultrasonic speeds to create the mist that this unit gives off. Minerals from your water will collect on the nebulizer and once they harden, the nebulizer slows to a pace that is not sufficient to create mist. Clean the nebulizer (refer to Weekly Cleaning instructions).

Need further assistance?

Call Us

(800) 477 - 0457
Monday - Friday
9:00 am- 5:00 pm EST

Email Us

Email your questions to:

Vicks Support Channel

Your questions answered for all Vicks products