Best Humidifiers & Dehumidifier on Sale

At Amazon, get this Homvana 3.6L Top-Fill Cool Mist Humidifier for $15 when you add it to your cart and proceed to checkout. It's the best price Amazon has charged for this model. The 3.6L tank is rated to last up to 4 nights per fill, and the top-fill design uses a 5.3" opening for easier refilling and cleaning. Buy Now at Amazon

This ToLife dehumidifier is 25% off its regular price of $80. The 95-oz. water tank covers up to 1,000 sq. ft. and includes an automatic shut-off when the tank is full. Shipping is free.  Buy Now at Amazon

At Amazon, add this GoveeLife 6L Smart Humidifier to you cart to get it for $54 at checkout. It's the best deal we've seen for this model. Shipping is free. Buy Now at Amazon

A large-capacity humidifier like this suits bedrooms, living rooms, or any space where you want extended runtime without frequent refills, and the 12-liter tank is the main draw if you run one overnight or through the day. After factoring in the $$17 import charges, $3.07 payment processing fee, and $33.63 shipping, it's a low by $20 for a similar one at Walmart. Buy Now at Alibaba

The Eva-Dry Wireless Mini Dehumidifier is $10.49 at Amazon. That's the lowest it's been there and the best we found now by $10. Shipping is free for Prime members. Buy Now at Amazon

The Vellgoo 4,000-sq. ft. Dehumidifier is $169.99 at Amazon. That's $60 off and the lowest price we could find. Shipping is free. Buy Now at Amazon

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

Airfire's 86oz capacity puts it in the mid-range for portable dehumidifiers, suitable for bathrooms, closets, or small bedrooms where moisture buildup is a recurring issue. At $70, it's $70 off the $140 list price, which is a 50% reduction. Buy Now at Walmart

Designed for spaces up to 1,500 square feet, this unit pulls 12 pints of moisture per day, which suits basements, crawl spaces, or any room where humidity is a consistent problem. At $108, that's $82 off the $190 list price. Buy Now at Walmart

Designed for nurseries, this covers three functions in one unit so you're not crowding a small room with separate devices for humidity, aromatherapy, and a nightlight. Buy Now at Target

A compact, low-cost humidifier suited for a small bedroom or office desk, running up to 12 hours on a single fill. At $16, that's $10 off the $26 list price. Buy Now at Walmart

The 4.5L tank means fewer refills, which suits larger rooms or anyone who runs a humidifier overnight without wanting to top it off daily. At $40, it's $20 off the $60 list price. Buy Now at Walmart

The Humsure 80-pint capacity puts it in the range suited for larger spaces like basements, crawl spaces, or whole-home use where smaller units struggle to keep up. At $223, that's $156 off the $379 list price. Buy Now at Walmart

Combines a humidifier, diffuser, and night light in one unit, which keeps things simple if you want to add moisture and aromatherapy to a small room without buying separate devices. At $16, that's $5 off the $21 list price. Buy Now at Walmart

Suits larger rooms or open-plan spaces where a standard compact humidifier can't keep up, and the dual cool and warm mist options let you use it year-round rather than just in dry winter months. At $63, it's $78 off the $141 list price. Buy Now at Walmart

The KNKA 34-pint unit is sized for smaller spaces like bedrooms, offices, or a modest basement, and handles moisture control without taking up much floor space. At $150, that's $90 off the $240 list price. Buy Now at Walmart

Fimilo's 3L evaporative humidifier uses a wick filter to naturally absorb and evaporate water, which means it won't produce the white mineral dust that ultrasonic models are known for, making it a reasonable choice for anyone sensitive to that issue. At $26, that's $44 off the $70 list price. Buy Now at Walmart