Slickdeals: The Best Deals, Coupons, Promo Codes & Discounts

Found by neomatrixviper
May 18, 2026 01:16 AM
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$46$5617% offCostco Members: 8-Pk 1" Filtrete MPR 700 MERV8 Air Filter (various sizes)
+ Free S&H
Costco Wholesale
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Found by neomatrixviper
May 18, 2026 05:57 AM
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$37$4721% offCostco Members: 2-Pk Filtrete 5" MPR 1550 MERV 12 Deep Pleat Air Filter
+ Free S&H
Costco Wholesale
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Found by neomatrixviper
May 17, 2026 12:23 AM
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$44$5418% offCostco Members: 2-Pk 5” Filtrete MPR 1900 MERV 13 Air Filters (Various)
+ Free S&H
Costco Wholesale
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Found by Navy-Wife
Yesterday 07:53 PM
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$20$60 66% offSelect Accts: Basvacsh 45,000mg/h Ozone Generator (up to 2500sqft)
+ Free S&H
Amazon
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66
Found by SickerDealer
Yesterday 11:35 PM
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$160$55070% offCertified Refurbished: Dyson TP4A Pure Cool Tower Purifier Fan (White / Silver) $159.99
eBay
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Found by pennysave
May 16, 2026 05:04 PM
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$11$2556% off6-oz Eva-Dry Wireless Mini Dehumidifier (White)
Amazon
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Found by JohnDubya
May 18, 2026 02:38 PM
$152$22030% off$151.94: LEVOIT Core 400S-P Air Purifier for Large Room Up to 1733 Sq Ft, HEPA, AHAM VERIFIDE, Smart WiFi, White
Amazon
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Found by pennysave
May 18, 2026 06:04 AM
$25$4037% off$24.97 | 2.5L Levoit Classic 160 Ultrasonic Cool Mist Humidifier at Amazon
Amazon
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Found by WittyMeerkat759
May 14, 2026 07:01 AM
$140$37062% offSwamp Cooler,1800CFM Evaporative Air Cooler with 5.3 Gal Water Tank,12H Timer,6 Ice Boxes,2 Modes,3 Speeds,120°Oscillation,Air Cooler for Indoor,Home,Kitchen,Bedroom $139.99
Amazon
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Found by jk6812
May 17, 2026 08:32 AM
$33$6549% offLevoit Classic 300 Ultrasonic Smart Humidifier (White) $32.99 + Free Shipping
eBay
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Found by LolaBunny21
May 15, 2026 06:00 PM
$20$4050% offFULMINARE H13 HEPA Air Purifier w/ Night Light (Green) $19.89 + Free Shipping w/ Prime or on $35+
Amazon
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Found by tDames
May 12, 2026 06:59 PM
$70$14050% offDreo Smart Ultrasonic Humidifier 3-Gallon 100H Runtime for Large Rooms $69.99 or less + Free Shipping
eBay
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Found by Dmytro_B
May 12, 2026 08:22 PM
$550$95042% offDyson Purifier Humidify+Cool PH03 $549.99
Amazon
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Found by neomatrixviper
May 07, 2026 09:27 AM
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$140$18022% offHisense 35 Pint Dehumidifier $139.99 shipping included Costco.com
Costco Wholesale
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Found by neomatrixviper
May 11, 2026 02:28 PM
$250$32021% offShark BreatheClear MAX With NeverChange Air Purifier $249.99 free shipping Costco.com
Costco Wholesale
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Found by SickerDealer
May 14, 2026 12:36 PM
$390$85054% offCertified Refurbished: Dyson HP09 Hot+Cool Formaldehyde Purifier (White/Gold) $389.99
eBay
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Found by Dmytro_B
May 11, 2026 05:53 PM
$177$31042% offVornado VFAN Sr. Pedestal Fan (42-55 in) + Vornado Flippi V6 Compact Air Circulator Fan $176.78
Amazon
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Found by JohnDubya
May 06, 2026 03:11 PM
$160$28042% off$159.83: Yaufey 5000 Sq. Ft. Energy Star Certified Dehumidifier, Max 80 Pints Dehumidifier for Basement with Drain Hose, 80 Pint
Amazon
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Found by LolaBunny21
May 10, 2026 08:03 PM
$30$6050% offDBFIT H13 HEPA Air Purifier w/ Aromatherapy & Timer (White) $29.99 + Free Shipping w/ Prime or on $35+
Amazon
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Found by Izzy138
May 08, 2026 02:52 PM
$60$20070% offSharper Image PURIFY 9 Triple Stage HEPA Large Room Air Purifier for $59.99 + Free Shipping
SideDeal
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Found by JohnDubya
May 09, 2026 08:39 PM
$25$6058% off[AC] $25.19: Crane Adorables Ultrasonic Humidifiers, 1 Gallon Cool Mist Air Humidifier, Monkey
Amazon
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Found by KatManDude
May 02, 2026 03:25 PM
$280$39028% offSereneLife Air Scrubber, Commercial HEPA 3 Stage Filtration System with MERV-10, Suitable for Industrial & Home Use, Portable, Blue $279.90
Amazon
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Found by Dr.W
May 05, 2026 03:27 PM
$39$8453% off2 Pack Ivory Air Purifiers with Fragrance Sponge, Blue Ambient Light, Sleep Mode, 23dB Quiet $38.63
Amazon
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Found by Immortalsolitude
Apr 29, 2026 02:46 AM
$60$8025% offToLife Dehumidifier for Home, 1000 sq.ft Dehumidifiers for Basement Bedroom Bathroom with 95 OZ Water Tank, Auto Shut Off 7 Colors LED Light $59.98
Amazon
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Found by Red_Liz
Apr 30, 2026 01:20 PM
$489$84041% offCostway 290 Pints Dehumidifier w/ Pump & Drain Hose for Up to 9,000sqft $489 + Free Shipping
Costway
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Found by htp182
Apr 28, 2026 09:20 AM
$45$7035% off6-Liter LEVOIT Classic300 Ultrasonic Top Fill Humidifier $44.99 + Free Shipping
Amazon
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Found by Immortalsolitude
Apr 25, 2026 02:25 AM
$24$4445% offAir Purifiers for Bedroom, Honeyuan H13 HEPA Air Purifier for Home Large Room 1095 sqft, Air purifiers with 360°Air Intake, 3 Fan Speeds, 3-Stage Filtration, White $23.99
Amazon
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Found by tDames
Apr 23, 2026 05:58 PM
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$40$8050% offLevoit Classic 300 Ultrasonic Smart Humidifier (White) $39.99 or less + Free Shipping
eBay
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Found by LovelyGuitar632
Apr 22, 2026 12:33 AM
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$250$30016% offAmazon: Levoit Core 600S-P Smart Air Purifier (2,933 sq ft) $249.99 (reg. $299.99) 17% Off, Spring Allergy Season Low at Amazon
Amazon
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Found by truckduck
Apr 20, 2026 05:28 AM
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$135$15010% offLevoit Core 300S-P Smart Air Purifier 3-Stage Filtration, App & Voice Control, For up to 1051 sq ft (1 ACH) with Code $135
Levoit
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Found by Dr.W
May 16, 2026 03:11 AM
$70$12041% offPrime: Provirtec Pawtent Pro New Pet Air Purifier, 2-Year Filter Life, Auto/Sleep Mode, 2500 ft² $69.99
Amazon
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Found by JohnDubya
May 13, 2026 04:31 PM
$197$31036% off$196.80: DuraComfort 8500 BTU Portable Air Conditioner, 3-in-1 AC Unit, Dehumidifier
Walmart
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Found by phoinix
Apr 27, 2026 01:05 PM
$17$4057% off[Resale] $17.14* | Dreo Humidifiers for Bedroom, 4L Top Fill for Large Room, White (Used - Like New) at Amazon
Amazon
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Found by Dr.W
Apr 24, 2026 01:43 PM
$42$7040% offAir Purifiers for Large Room up to 1690 ft², HEPA Filter with PM 2.5 Monitor $41.99
Amazon
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Air Purifiers, Humidifiers & Dehumidifiers Deals