Best Humidifiers & Dehumidifier on Sale

The Airfire 4L Cool Mist Humidifier is a mid-size unit suited for bedrooms or home offices where dry air is a recurring issue, and at $45 it's currently half the $90 list price. Buy Now at Walmart

The tall, tower-style design fits well in bedrooms or living rooms where you want a humidifier that blends into the space rather than sitting on a table, and the 5-liter tank means fewer refills than most compact units. At $53, that's $67 off the $120 list price, which is a 56% discount. Buy Now at Walmart

Sized for basements and large spaces up to 4,500 square feet, this 80-pint dehumidifier handles serious moisture problems rather than minor humidity in a single room. At $158, that's roughly $142 off the $300 list price. Buy Now at Walmart

Sized for spaces up to 5,000 square feet with a 70-pint capacity, this dehumidifier suits basements, large rooms, or humid climates where a smaller unit would struggle to keep up. At $110, it's $90 off the $200 list price. Buy Now at Walmart

Sized for smaller spaces like bedrooms, bathrooms, or offices, this 12-pint dehumidifier is a practical pick if you deal with seasonal dampness or mild humidity issues without needing a whole-house unit. At $108, it's $122 off the $230 list price. Buy Now at Walmart

Pulls up to 100oz of moisture per day and runs quietly enough for a bedroom or home office, which makes it a reasonable pick for anyone dealing with dampness in a small-to-medium space. At $65, it's $65 off the $130 list price. Buy Now at Walmart

Handy for anyone dealing with humidity in closets, basements, or storage spaces, since buying refills in bulk keeps you from making frequent restocking trips. Buy Now at Walmart

Handles both warm and cool mist in a 6-liter tank, which suits larger rooms or anyone who wants year-round use without swapping units between seasons. At $80, that's $40 off the $120 list price. Buy Now at Walmart

Sized for a small room, closet, or bathroom, this compact dehumidifier pulls moisture from the air without taking up much floor space, and at $40 it's about $31 off the $71 list price. Buy Now at Walmart

Sized for basements and crawl spaces rather than a single room, a 90-pint dehumidifier like this one is built for spaces with serious moisture problems where a smaller consumer unit won't keep up. At $942, that's about $105 off the $1,047 list price. Buy Now at Walmart

A replacement filter pack worth having on hand if you own an Eekit evaporative humidifier, since running a worn-out wick reduces output and can affect air quality. At $11, that's $2 off the $13 list price. Buy Now at Walmart

The Dhole 16L Dual Mist humidifier covers larger spaces than most home units, outputting both warm and cool mist depending on your preference or the season, and at $100 it's $30 below the list price. Buy Now at Walmart

Replacement wick filters for humidifiers are one of those consumables you need to stock up on periodically, and this 2-pack from EEEkit is $2 off the $13 list price at $11. Buy Now at Walmart

Replacement filters for the ALROCKET JH01 air purifier, priced at $14 (down from $30), so if you already own this unit, stocking up now cuts your ongoing maintenance cost roughly in half. Buy Now at Walmart

A compact desktop unit that blows cooled, humidified air in your direction, useful if you run hot at a desk or want a small personal cooler without installing a window AC. At $36, it's $14 off the $50 list price. Buy Now at Walmart

A commercial-grade dehumidifier suited for basements, crawl spaces, or job sites where a standard residential unit doesn't have enough capacity, priced $24 off the $470 list price. Buy Now at Walmart

Replacement filters for Honeywell's Filter A-compatible humidifiers, and buying a 4-pack keeps you stocked for roughly a year of regular use since most manufacturers recommend changing them every 1 to 3 months. At $20, that's about $4 off the $24 list price. Buy Now at Walmart

Replacement filters for the GermGuardian AC4825, AC4300, AC4800, and AC4850PT models, sold as a 2-pack at $23, which is about $2 under the $25 list price. Buy Now at Walmart

A 4-pack of 20x20x1 MERV 8 filters at $30 works out to about $7.50 per filter, which is a reasonable price for standard furnace or HVAC replacements if you're on a regular swap schedule. That's $24 off the $54 list price. Buy Now at Walmart