Refurbished Humidifiers — 179 Deals

179 live US listings.

Homedics Ultrasonic Cool Mist Humidifier, Top-Fill 3L Water Tank, Covers 395 sq. ft, 35-Hour Runtime, 3 Mist Settings, Clean Tank Tech, Auto-Off, Night Light, Quiet by Homedics - Used condition - US$18.02

Homedics Ultrasonic Cool Mist Humidifier, Top-Fill 3L Water Tank, Covers 395 sq. ft, 35-Hour Runtime, 3 Mist Settings, Clean Tank Tech, Auto-Off, Night Light, Quiet

-64% Save $31.97

Update: 19 days ago

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SwitchBot Evaporative Humidifier for Bedroom 4.5L, 750ml/h, No Mist, No White Dust, Tap Water Fillable, Top Fill, for Baby, Nursery, Plants, Indoor, Work with Matter, HomeKit, Alexa, No Hub Required by SwitchBot - Used condition - US$165.59

SwitchBot Evaporative Humidifier for Bedroom 4.5L, 750ml/h, No Mist, No White Dust, Tap Water Fillable, Top Fill, for Baby, Nursery, Plants, Indoor, Work with Matter, HomeKit, Alexa, No Hub Required

Used – VeryGood

-18% Save $34.40

Update: 19 days ago

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MEGAWISE 2025 Large Capacity Humidifier, 6L Top Fill Design, 50H Runtime, Ultra Quiet Large Capacity Cool Mist for Bedroom, Baby Nursery, Plants, Indoor, Easy to Clean & Fill (White) by MEGAWISE - Used condition - US$26.52

MEGAWISE 2025 Large Capacity Humidifier, 6L Top Fill Design, 50H Runtime, Ultra Quiet Large Capacity Cool Mist for Bedroom, Baby Nursery, Plants, Indoor, Easy to Clean & Fill (White)

-47% Save $23.47

Update: 19 days ago

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Vornado Votiv 7 Whole Room Ultrasonic Humidifier with Ambient Lighting, 2 Gallon Output, Carry Handle, Simple Refill, Touch Controls, 2 Mist Settings, Humidifier for Bedroom, Translucent White by Vornado - Used condition - US$38.63

Vornado Votiv 7 Whole Room Ultrasonic Humidifier with Ambient Lighting, 2 Gallon Output, Carry Handle, Simple Refill, Touch Controls, 2 Mist Settings, Humidifier for Bedroom, Translucent White

-22% Save $10.64

Update: 19 days ago

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BOXING 4.5L Warm and Cool Mist Ultrasonic Humidifier for Bedroom Large Room, Top Fill Essential Oil Diffuser with Remote, Auto Shut-Off Quiet Sleep Mode, Humidistat, Timer, BPA-Free, 45H Runtime by Boxing - Used condition - US$47.49

BOXING 4.5L Warm and Cool Mist Ultrasonic Humidifier for Bedroom Large Room, Top Fill Essential Oil Diffuser with Remote, Auto Shut-Off Quiet Sleep Mode, Humidistat, Timer, BPA-Free, 45H Runtime

Used – Acceptable

-37% Save $27.50

Update: 20 days ago

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DREO Humidifiers for Bedroom, Cool Mist Ultrasonic Humidifier with 26dB Quiet & RGB Lighting, Top Fill 3L Tank, Easy Clean, 30 Hr Runtime for Home, Baby, Plant, Nursery, Work with Google/Alexa by DREO - Used condition - US$44.60

DREO Humidifiers for Bedroom, Cool Mist Ultrasonic Humidifier with 26dB Quiet & RGB Lighting, Top Fill 3L Tank, Easy Clean, 30 Hr Runtime for Home, Baby, Plant, Nursery, Work with Google/Alexa

Update: 20 days ago

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DREO HM735S 11L Smart Humidifier Large Room 700 ft², 100H Cool Mist Air Humidifiers for Bedroom, Top-Fill, Clean Tank Technology, 26dB, Auto Mode, Aroma Box, RGB, Remote & APP Control, Baby, White by DREO - Used condition - US$90.99

DREO HM735S 11L Smart Humidifier Large Room 700 ft², 100H Cool Mist Air Humidifiers for Bedroom, Top-Fill, Clean Tank Technology, 26dB, Auto Mode, Aroma Box, RGB, Remote & APP Control, Baby, White

-28% Save $35.00

Update: 20 days ago

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DREO Humidifiers for Bedroom, Top-filled Smart Quiet Cool Mist Humidifier for Large Room Home, Oil Diffuser & Nightlight, 50Hours Runtime for Indoor Plants, with Alexa/Google, White by DREO - Used condition - US$29.01

DREO Humidifiers for Bedroom, Top-filled Smart Quiet Cool Mist Humidifier for Large Room Home, Oil Diffuser & Nightlight, 50Hours Runtime for Indoor Plants, with Alexa/Google, White

-41% Save $20.02

Update: 20 days ago

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Sponvatt Humidifiers for Bedroom Home,2.5L Top Fill Cool Mist Air Humidifier for Large Room Baby Nursery,Quiet Ultrasonic,With Oil Diffuser and Nightlight,for Plants,Office,Easy to Clean,Auto Shut-Off by Sponvatt - Used condition - US$12.99

Sponvatt Humidifiers for Bedroom Home,2.5L Top Fill Cool Mist Air Humidifier for Large Room Baby Nursery,Quiet Ultrasonic,With Oil Diffuser and Nightlight,for Plants,Office,Easy to Clean,Auto Shut-Off

Used – VeryGood

-32% Save $6.00

Update: 20 days ago

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Dreo Humidifiers for Bedroom, 4L Top Fill for Large Room, 36H Runtime, 28 dB Quiet Supersized Cool Mist Air Humidifier for Baby Nursery, Plants, Indoor, Night Light, Easy to Clean & Fill, Blue by DREO - Used condition - US$24.79

Dreo Humidifiers for Bedroom, 4L Top Fill for Large Room, 36H Runtime, 28 dB Quiet Supersized Cool Mist Air Humidifier for Baby Nursery, Plants, Indoor, Night Light, Easy to Clean & Fill, Blue

Used – Acceptable

-39% Save $15.20

Update: 20 days ago

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DREO 6L Top Fill Humidifiers for Bedroom, 60H Runtime 28 dB Quiet Supersized Cool Mist Air Humidifiers for Large Room, Baby Nursery, Plant, Indoor, Night Light, Easy to Clean, Precise Humidity Control by DREO - Used condition - US$38.99

DREO 6L Top Fill Humidifiers for Bedroom, 60H Runtime 28 dB Quiet Supersized Cool Mist Air Humidifiers for Large Room, Baby Nursery, Plant, Indoor, Night Light, Easy to Clean, Precise Humidity Control

-36% Save $21.00

Update: 20 days ago

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DREO 6L Top Fill Humidifiers for Bedroom, 60H Runtime 28 dB Quiet Supersized Cool Mist Air Humidifiers for Large Room, Baby Nursery, Plant, Indoor, Night Light, Easy to Clean, Precise Humidity Control by DREO - Used condition - US$33.47

DREO 6L Top Fill Humidifiers for Bedroom, 60H Runtime 28 dB Quiet Supersized Cool Mist Air Humidifiers for Large Room, Baby Nursery, Plant, Indoor, Night Light, Easy to Clean, Precise Humidity Control

Used – Acceptable

-45% Save $26.52

Update: 20 days ago

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DREO 6L Top Fill Humidifiers for Bedroom, 60H Runtime 28 dB Quiet Supersized Cool Mist Air Humidifiers for Large Room, Baby Nursery, Plant, Indoor, Night Light, Easy to Clean, Precise Humidity Control by DREO - Used condition - US$42.81

DREO 6L Top Fill Humidifiers for Bedroom, 60H Runtime 28 dB Quiet Supersized Cool Mist Air Humidifiers for Large Room, Baby Nursery, Plant, Indoor, Night Light, Easy to Clean, Precise Humidity Control

-29% Save $17.18

Update: 20 days ago

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DREO Smart Humidifiers for Bedroom, 6L Top Fill Supersized Cool Mist Humidifier for Large Room, 60 Hour Runtime, Quiet Ultrasonic Humidifiers for Plants, Indoor, Home, Night Light, White by DREO - Used condition - US$45.49

DREO Smart Humidifiers for Bedroom, 6L Top Fill Supersized Cool Mist Humidifier for Large Room, 60 Hour Runtime, Quiet Ultrasonic Humidifiers for Plants, Indoor, Home, Night Light, White

-25% Save $14.50

Update: 20 days ago

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DREO Smart Humidifiers for Bedroom, 6L Top Fill Supersized Cool Mist Humidifier for Large Room, 60 Hour Runtime, Quiet Ultrasonic Humidifier for Plants, Indoor, Home, Night Light, Black by DREO - Used condition - US$40.73

DREO Smart Humidifiers for Bedroom, 6L Top Fill Supersized Cool Mist Humidifier for Large Room, 60 Hour Runtime, Quiet Ultrasonic Humidifier for Plants, Indoor, Home, Night Light, Black

Used – Acceptable

-36% Save $22.26

Update: 20 days ago

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DREO Humidifiers for Bedroom, 6L Easy to Fill & Clean, 60H Runtime for Large room, 28 dB Quiet Cool Mist Air Humidifier for Plant, Baby Nursery, Home, Indoor, Night Light, Precise Humidity Control by DREO - Used condition - US$28.65

DREO Humidifiers for Bedroom, 6L Easy to Fill & Clean, 60H Runtime for Large room, 28 dB Quiet Cool Mist Air Humidifier for Plant, Baby Nursery, Home, Indoor, Night Light, Precise Humidity Control

Used – Acceptable

-43% Save $21.32

Update: 20 days ago

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Dreo Smart Humidifiers for Bedroom-Filter Included, Top Fill 4L Humidifier Large Room with 28 dB, 36H Runtime, Touch/APP/Voice Control, Nightlight, Cool Mist Humidifiers for Baby, Plants, Ebony by DREO - Used condition - US$40.86

Dreo Smart Humidifiers for Bedroom-Filter Included, Top Fill 4L Humidifier Large Room with 28 dB, 36H Runtime, Touch/APP/Voice Control, Nightlight, Cool Mist Humidifiers for Baby, Plants, Ebony

-18% Save $8.62

Update: 20 days ago

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CHIVALZ 6L Humidifiers for Bedroom Large Room Home, Cool Mist Top Fill Humidifiers for Baby Nursery and Plants, 26dB Quiet, Nightlight, Up to 50 Hours, Oil Diffuser 1 Pack + 2 Mist Outlets White by CHIVALZ - Used condition - US$37.04

CHIVALZ 6L Humidifiers for Bedroom Large Room Home, Cool Mist Top Fill Humidifiers for Baby Nursery and Plants, 26dB Quiet, Nightlight, Up to 50 Hours, Oil Diffuser 1 Pack + 2 Mist Outlets White

-31% Save $16.60

Update: 20 days ago

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SazkJere 4Pcs USB Humidifieration Atomization Disc Micro Interface Atomization Drive Circuit Board DC 5V for DIY Home by SazkJere - Used condition - US$7.98

SazkJere 4Pcs USB Humidifieration Atomization Disc Micro Interface Atomization Drive Circuit Board DC 5V for DIY Home

$7⁹⁸

-16% Save $1.50

Update: 20 days ago

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HHE150 Hunter Aspire 4.8L Evaporative Humidifier with PermaWick Filter (4.8L) - Remove Contaminants & White Dust for Clean Mist & Air – Medium Humidifier for Home, Bedroom, or Dorm - Aqua by Hunter - Used condition - US$44.99

HHE150 Hunter Aspire 4.8L Evaporative Humidifier with PermaWick Filter (4.8L) - Remove Contaminants & White Dust for Clean Mist & Air – Medium Humidifier for Home, Bedroom, or Dorm - Aqua

Used – VeryGood

-25% Save $15.00

Update: 20 days ago

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Dreo Humidifiers for Bedroom, 4L Top Fill for Large Room, 36H Runtime, 28 dB Quiet Supersized Cool Mist Air Humidifier for Baby Nursery, Plants, Indoor, Night Light, Easy to Clean & Fill, Black by DREO - Used condition - US$25.42

Dreo Humidifiers for Bedroom, 4L Top Fill for Large Room, 36H Runtime, 28 dB Quiet Supersized Cool Mist Air Humidifier for Baby Nursery, Plants, Indoor, Night Light, Easy to Clean & Fill, Black

Used – Acceptable

-41% Save $17.49

Update: 20 days ago

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AprilAire 800 Whole-House Steam Humidifier, Automatic Steam Humidifier, Large Capacity Whole-House Humidifier for Homes up to 10,300 Sq. Ft., White by Aprilaire - Used condition - US$863.75

AprilAire 800 Whole-House Steam Humidifier, Automatic Steam Humidifier, Large Capacity Whole-House Humidifier for Homes up to 10,300 Sq. Ft., White

-35% Save $459.83

Update: 20 days ago

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4655 Manual Whole House Humidifiers/Wall Mounted Humidifier Control Humidistat For AprilAire Manual Humidifier Whole House,24VAC by FBULWSEC - Used condition - US$18.27

4655 Manual Whole House Humidifiers/Wall Mounted Humidifier Control Humidistat For AprilAire Manual Humidifier Whole House,24VAC

-26% Save $6.32

Update: 20 days ago

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Frida Baby 3-in-1 XL Top Fill Humidifier for Bedroom, Cold & Flu Relief, 6L Tank Cool Mist Humidifier + Diffuser for Large Rooms, Nightlight, Auto-Off, Quiet, Essential Oil Diffuser by Frida - Used condition - US$75.19

Frida Baby 3-in-1 XL Top Fill Humidifier for Bedroom, Cold & Flu Relief, 6L Tank Cool Mist Humidifier + Diffuser for Large Rooms, Nightlight, Auto-Off, Quiet, Essential Oil Diffuser

Used – VeryGood

Update: 20 days ago

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