After a few weeks of use ours was making a strange wobbling type sound. Upon closer inspection I noticed the Aerator Spindle was covered in a mossy moldy greenish black slimy gunk. I also found it had dirt and gunky growth all inside the aerator housing as well.
Because there was no air intake filter to keep dust, mold spores, germs and other particles from getting into the unit, moldy mossy growth was taking place.
If you have had this problem don't throw it away. I will show you how to clean and add a filter to your Vick's Filter Free Cool Mist Humidifier.
For this Instructable you will need
Philips screw driver.
Hot soapy water
An old toothbrush
One clean girls Dress Sock (save the other for an extra filter replacement).
Step 1: Taking Your Vick's Cool Mist Unit Apart
take off Reservoir, empty and clean then set aside.
remover Aerator and Motor housing unit and turn over and unscrew the three screw tabs and remove bottom cover.
Step 2: Removing Aerator Spindle and Aeration Plate
put your fingers under the flaps of the rotating aerator plate and lift sternly to remove from motor spindle.
Step 3: Removing and Cleaning Motor Housing
Completely wash all plastic Housing parts in warm soapy water.
Next find your mother-in-laws toothbrush or any old toothbrush to clean the tight, hard to scrub places.
The aerator spindle will have stuff in it you may need to run hot water through it and use Q-tips to get all the slimy gunk out of the inside of the aerator spindle.
Step 4: Removing Air Intake Grill and Adding Filter
slightly lift the top above the air intake Grill and pull the Air intake grill out of its position.
Wash air intake grill with warm soapy water and dry.
cut and remove the upper area of the sock leaving only the foot area so you have a filter bag.
slip filter bag over the air intake grill and pull tight and fold excess flap into the inside of the air intake grill.
Step 5: Replacing Filtered Air Intake and Reassembling
tighten top plate screws.
re assemble in reverse order replacing the motor Housing, Aerator plate and Aerator spindle and bottom plate remembering to replace and tighten all screws.
replace aerator motor unit back on Humidifier base. Refill reservoir and put on Humidifier base.
Step 6: Enjoying Your Vick's Filtered Cool Mist Humidifier