kills some ick in your cool air humidifier
353706
These work about 90%. The water will still slime but (I hope) that whatever they put in these little things is killing the bad stuff that could cause you harm. I have been using them for two seasons with no complaints. You will go through at least two per season (don't think they last for ever cheapskates).
505625
I fill it up once a week, and leave it on all the time. It really makes the room feel warmer and it is very quiet. It doesn't require salt, but it is not super easy to fill. I would recommend putting a saucer under it if there is a chance that you may knock it over.
But it works great, better than the more expensive humidifiers. You can't add anything to the water and that is the only thing that has a negative to it.
I would recommend it to anyone who wants a hassle free way to humidify a large room.
4718553
Does what it says.  Really cleaned up my humidifier and has it working better.
3075081
Great idea for those who get sick from cleaning humidifiers. Even the charcoal cleaning kits and cleaning solution set off flu-like symptoms for me.
4019345
Overall, this is a good humidifier. We have one of these humidifiers, a Honeywell "warm mist" humidifier, and an Air-O-Swiss ultrasonic humidifer to humidify our 2,400 sq ft home in Phoenix, which has very low humidity especially in the winter time. This is the third season we've used this unit.

Mode of operation: This humidifier works by a filter being constantly wetted by the water in the water tank. A fan draws air through the filter, and then blows out it through the filter again. This type of filter is also referred to as an evaporative filter.

Ability to humidify: Of all three of our humidifiers, this is the king. It can raise the humidity in about half of our house between 10-25 percentage points.

Noise: Basically, think of this humidifer as a fan. At all three speeds, you can hear the fan, but it's nice quiet noise at the lowest speed, and fairly loud at the highest speed. We run it at high speed over night, low speed in the evening while we watch TV, and medium speed throughout the day.

Hygrometer accuracy: Of all three of our humidifiers, the digital hygrometer is spot on, matching the humidity on two of our stand-alone hygrometers.

Type of water that has to be used: Evaporative humidifiers are nice in that you can use straight tap water without any types of problems. We have softened water, as Phoenix water is normally pretty hard.

Ease of cleaning: Pretty easy, actually. Every couple of weeks, I just wash the tank and the base in the dishwasher (on "gentle"). There is no scale or mold, etc., to be cleaned off.

Consumables: There are two consumables: the Protec cartridge and the filter. The Protec cartridge I replace every 30 days per directions, and it's supposed to decrease the chance of mold growing in the unit. The filter I replace just every season. It *can* get really dirty, as this unit effectively acts as an airwasher, washing the dust out of the air.
3149018
Good humidifier . We have it for a while and it does its job well :)
4242618
Some people just don't know how to use this product!!!!! I have 2 Vics 3900 humidifiers that I use to help keep the humidity in my home at 50%. First use filtered water (from the fridge that has a filter and water dispenser). Then put a 1oz. solid silver coin in the reservoir (a US silver Eagle or Canadian Maple Leaf coin) You can get one at any coin dealer. The silver won't let any mold, mildew, or any bacteria grow in the water. (you can check any hospital as they use silvered water in their operating rooms for just this purpose). Then every time you refill the reservoir put the filter back in upside down to even out the mineral deposits. Every now and then rinse the filter gently in warm water to reduce the buildup of minerals. I have used my humidifiers 24hours a day for all winter and with care the filter lasts 4 months or so.
485244
This is a wonderful cool mist humidifier.  I bought one a few years back and decided recently to buy two more, one for each bedroom.  Takes a gallon of water and if put on low-medium mist, lasts 2-3 days. Quick shipping and satisfied with this purchase.
216209
Makes my humidifier useful again.  Clean distilled water does not leave a residue on all surfaces.
4201093
After I have purchased this wonderful humidifier, the allergies are less and less and it have alleviated the discomfort of the heater in cold climates, we can actually breath better and have no dry throat anymore! I love this humidifier; you can control the time settings, the mist can be warm or cold and it holds a lot of water :)
1036480
Absolutely, the best "cool mist" humidifier I have purchased; a very wise investment.  If you or anyone want to get off some of allergy meds then get one of these!  Make sure you order the bacterial stat additive because this controls release of bacterial allergens plus help keep the machine cleaned.  Change filter every 60 days, order them through Amazon.
1795680
quiet and efficient, best humidifier I have had
4181348
Having seen a few people personally in real life die from pneumonia that was caused
by moldy (duh fungus) and germ infested air conditioning coils and service people
who just look at it and say its done here is the bill I decided something had to
be done as my eyes where starting to itch and turn red and nose was snotty whenever i turned on the ac. So with a can of evaporator coil cleaner in hand i zipped into the attic
and turned the power off at the air handler unscrewed the panel and sprayed that coil zippitty slic and then to keep jello from forming in the drain pan i put salt
tabblets in the evaporator coil drain pan. and zippity callamazoo guess what
all my flu simptoms whent away i could clearly say just because i am more sensitive than you to pathogens like fungus,bacteria,viruses which multiply in ac coils
and then blow all over this makes me a pathogen sensor and i can tell you if you
ignore the pathogen sensor you will die if not quickly then slowly over time
so morral of this story don't breath fungus into your lungs and or get it in your eyes.
ps when you die from fungus pathogen ussually the corroner says died of natural causes (organ failure) because they are clewless what caused it
there yu go have a healthier life
3839852
Humidifier is quiet and doesn't require a lot of cleaning. You don't have to worry about mold or mildew. I own a few of them and now my children use them in their homes.
3597952
The Ozium took a couple of days to get rid of the odor, but it works just as advertised; thank goodness.  The stale, humid  condition seemed to hold the cigarette odor in the room and air freshener spray worked only for several minutes and I would have to respray, the Ozium got rid of the odor and seems to keep the odor away!  I love it!
3897700
Works as advertised. Cool mist. No drenching.
3232133
The unit functions well. We placed it near an air intake duct and does a great job of humidifying both levels of our house. We have it set at 50 and after initial humidification, I only have to refill the tank about every 3 to 4 days. I heartily recommend this product.