Slant Fin GF-220 Germ-Free Warm Mist Room Dual Tank Humidifiers

Slant Fin GF-220 Germ-Free Warm Mist Room Dual Tank Humidifiers

Slant Fin GF-220 germ-free warm mist room dual tank humidifiers for the home, bedroom, apartment or office use the germicidal power of ultraviolet light and vaporization for a germ free mist for allergy, asthma and sinus sufferers. Warm mist humidifier ratings, reviews and comparisons. Reports on slant fin humidifiers by consumer experts.

Price: $99.99
- Very Good
Now receive two 6-packs of mineral pads free with purchase ($20 value). see below for details.

Slant Fin Humidifiers -2.75 gal.
Slant Fin Humidifiers -3.5 gal.

Cool Mist Humidifiers<

These dual tank- 1 gallon each warm mist humidifiers feel like the warmth of a greenhouse, and will humidify a room exceptionally fast. An occasional gurgling sound may irritate some, but otherwise this is the quietest humidifier we carry. An ultraviolet light and vaporization assure a bacteria free mist. Slant fin humidifiers do not have a digital humidistat, and mineral pads do need replacing if distilled water is not used. That being said, the Slant Fin is our favorite humidifier overall and its reliability record is excellent.

Slant Fin Dual Tank Warm Mist Air Humidifiers - are ideal for someone who...

  • Suffers from allergies, asthma or sinus pressure and wants a portable warm mist air humidifier free of all common household bacteria, mold and spores that can breed in tap water
  • Needs to disperse humidity over 400 square feet of space (standard one room area)
  • Wants a quiet, powerful air humidifier that uses both ultraviolet light and vaporization (boiling) to ensure a germ free warm mist
  • no white mineral dust created or scale buildup on the humidifier tank
  • Wants a warm mist air humidifier that can help save on energy bills
  • Wants a built-in medicine cap

Learn More about Humidifiers

Humidifiers Comparison Chart - Ratings, Reviews, and Prices

FAQ - Which is the Best Humidifier?

Use and Care of Humidifiers - EPA

Cool Mist and Warm Mist Humidifiers Features Comparison

Features of the Slant Fin Dual Tank Warm Mist Air Humidifiers - GF 220

  • Comfortable warm mist humidification utilizing both UV light and vaporization that is virtually 100% free of bacteria, mold and spores (proven in independent laboratory testing)
  • Quiet operation is ideal for bedroom use
  • Water reservoirs with a total of 2.0 gal. Two 1 gallon tanks.
  • Easy to use controls, easy to grip handle
  • Humidity settings: Low to high output (only one speed)
  • Special disposable mineral pads absorb minerals and white dust which has been linked to certain health risks
  • Humidifies for up to 24 hours continuously (GF-220 model) on high setting without a refill
  • Two 1 gal tanks have large opening for quick and easy filling and a convenient lift out handle
  • Lift-out tank with built-in handle and large refill opening
  • Built in medicine cup permits optional blending of respiratory medications
  • Absolutely no white dust is dispersed. Minerals do not go into the room air where you could breathe them in.
  • Replacement ultra violet bulb indicator light
  • 3-year limited warranty
Maintenance: The tank should be cleaned with a solution of mild detergent and water at least once a week during use. Rinse well. Mineral pads should be changed when they become hard. Six mineral pads are included, one already installed, and one comes separate. The mineral pads will absorb any minerals from the mist. The mineral absorption pad should be changed after approximately (3) weeks of continuous use, sooner if you have hard water. The ultraviolet light should be changed every 1-2 years.

Features of the Slant Fin Warm Mist Air Humidifier

Slant Fin Humidifier Models

Slant Fin Dual Tank GF-220 Humidifier

Type of mist

Warm Mist

Room area coverage

400 square feet

Water capacity

2.0 gallons

Volt, Hertz, Watts, Amp

120v, 60hz, 265w, 2.17amps

Unit Weight (empty)

10.3 lbs


15.625" H x 12.375" W x 12 " L

UV Bulb life

2200 hrs or 1-2 years (depending on usage)

Refilling duration

up to 24 hours

Auto shut-off


Replacement UV bulb indicator light


Built-in medicine cup


Manual refill and reset button


Recommended cleaning period (unit in use)

Once a week or as needed


3-year limited

Reports by consumer experts on Slant Fin Humidifiers
- Very Good
Courtesy of Allergy Buyers

The Slant Fin GF-220 warm-mist air humidifier is truly unique from most other brands since they use an exclusive dual-germicidal process that includes ultraviolet light (UV) and vaporization (boiling) to deliver mist that has been laboratory tested to be 99.999% germ-free. This unit has dual 1 gallon tanks that make refilling very easy. The unit is well balanced and makes a great warm mist humidifier.

  • This humidifier clearly is ideal for those who are concerned about killing germs and bacteria
  • The mineral pads included with the unit do absorb minerals and white dust that often is emitted into the air with other warm mist humidifiers
  • A quiet humidifier - ideal for the bedroom
  • Stainless steel reservoir makes it quite durable
  • Lasts for 24 hours before refilling water


  • The unit still needs to be cleaned by hand at least once a week (although not as often as some other humidifier models we tested)
  • While there are no wicks or filters to change, the humidifier needs new mineral pads (3-4 weeks) and ultra violet bulb replacement every 1-2 years (see care instructions above).
  • Only one speed
  • No digital humidistat display

Summary: The Slant Fin GF-220 was rated excellent by our consumer staff and the ultra violet light is unique to the Slant Fin line of humidifiers. If you want a healthy quiet humidifier this is a great choice.

Slant Fin Dual Tank Warm Mist Air Humidifiers


Receive two 6-packs of mineral pads free with purchase ($20 value). Just enter in the comments section of your order "Please send me my Free mineral pads" and we'll include them with your order. Valid until June 30th 2005!

Digital Thermometer and Hygrometer with Temperature and Relative Humidity Sensor


This thermometer indicates the temperature indoors or outdoors and the humidity indoors. It features a large digital LCD display with clock for easy reading, minimum - maximum temperature read out with memory, light button, wall mount or folding stand, 10 foot outdoor weather-proof sensor wire.

Slant Fin Humidifier Mineral Pads (pack of 6) and UV Replacement Bulb


Mineral Pads (pack of 6)- The Mineral Absorption Pads will play a major role in capturing and removing minerals from hot water reservoir, and preventing a stubborn mineral buildup. The mineral absorption pad should be changed after approximately (3) weeks of continuous use. If the water is "Hard Water", the pad should be changed more frequently. Comes with a replacement Ultra Violet Germicidal bulb for all Slant/Fin Humidifier models.