The main places to buy a humidifier
You can buy a humidifier at big-box retailers like Walmart, Target, and Costco; online marketplaces like Amazon; home improvement stores like Home Depot and Lowe's; appliance specialty shops; and drugstores like CVS and Walgreens. Each option has different inventory, price ranges, and return policies, so the best choice depends on whether you want to see the unit in person, need it quickly, or are looking for a specific brand or size.
Most humidifiers cost between $30 and $300, with ultrasonic and evaporative models at the lower end and whole-house or smart models at the higher end. Prices and availability vary by location and season—demand spikes in winter, so stock can run low and prices may rise in November and December.
Key Takeaways
- Big-box retailers like Walmart and Target stock basic humidifiers year-round and let you compare models side by side before buying.
- Amazon and other online marketplaces offer the widest selection and fastest shipping, but you cannot inspect the unit before purchase.
- Home improvement stores carry both portable and whole-house humidifiers, plus filters and replacement parts you may need later.
- Specialty appliance shops and drugstores stock smaller, portable units and can answer questions about which type suits your space.
- Return policies vary widely—check the store's rules before you buy, especially if you are ordering online.
Big-box retailers: Walmart, Target, and Costco
Walmart and Target carry humidifiers year-round in their home goods or seasonal sections. Both stores stock a mix of brands—usually Honeywell, Levoit, Pure Enrichment, and store brands—in sizes from small tabletop units to larger console models. You can walk in, see the units in person, and read the packaging to compare features like tank size, runtime, and noise level. Prices are competitive, and both stores allow returns within 30 to 90 days if you keep the receipt and the unit is in resalable condition.
Costco carries a rotating selection of humidifiers, usually during fall and winter months. Costco's inventory changes frequently and varies by location, so call ahead or check the website to see what is currently in stock. Costco members get a 60-day return window and often find bundle deals—for example, a humidifier paired with filters or cleaning supplies. Non-members can shop online at Costco.com without a membership, though shipping costs are higher.
Online marketplaces: Amazon and others
Amazon stocks thousands of humidifier models from dozens of brands, with prices ranging from $20 to $500. You can read customer reviews, compare specs side by side, and filter by size, type, and features. Prime members get free two-day shipping on many items, and some units may have access to for next-day or same-day delivery in major cities. Amazon's return window is 30 days for most items, though some sellers offer longer windows.
Other online marketplaces like Wayfair, Bed Bath & Beyond, and Overstock also carry humidifiers with similar selection and shipping options. Wayfair specializes in home goods and often has sales or coupon codes. Bed Bath & Beyond allows returns within 60 days. Read the seller's shipping and return policy before you order, because times and fees vary by marketplace and seller.
Home improvement stores: Home Depot and Lowe's
Home Depot and Lowe's stock both portable humidifiers and whole-house units that connect to your furnace or HVAC system. Both stores carry major brands like Honeywell, Aprilaire, and Vornado, plus filters, replacement wicks, and cleaning supplies you may need to maintain the unit. Staff can answer questions about which type works best for your space and whether you need professional installation for a whole-house model.
Home Depot and Lowe's both offer 30-day returns and price-match guarantees, so if you find the same model cheaper elsewhere, they will match the price. Both stores offer in-store pickup for online orders, usually within a few hours, which is useful if you need a humidifier quickly. Some locations also offer delivery and installation services for whole-house units, though fees explore.
Specialty appliance and drugstores
Specialty appliance shops like Best Buy and local independent appliance dealers stock humidifiers alongside other home comfort equipment. Best Buy carries portable models from brands like Levoit, Honeywell, and Dyson, and staff can explain the differences between ultrasonic and evaporative types. Best Buy's return window is 15 days for most items, which is shorter than big-box retailers, so check the receipt before you leave the store.
Drugstores like CVS, Walgreens, and Rite Aid carry small, portable humidifiers in their health and wellness sections, usually priced between $30 and $80. These units are convenient if you need one quickly and do not want to make a separate trip, but selection is limited and prices are often higher than at big-box or online retailers. Return policies vary by location, so ask at the register.
Timing and seasonal availability
Humidifier inventory peaks in September through November as people prepare for dry winter months. Prices are usually lowest during this window, and selection is widest. From December through February, demand is high, stock can run low, and prices may increase. In spring and summer, selection shrinks and some retailers move humidifiers to storage or clearance sections.
If you need a humidifier during peak season, order online or visit the store early in the day to find what you want. If you are flexible on timing, buying in late August or early September gives you the best selection and pricing. Check the store's website or call ahead during off-season months to confirm the unit you want is in stock before you make the trip.
What to check before you buy
Before you purchase, confirm the humidifier's tank size, runtime, and noise level match your needs. Tank size ranges from 0.5 liters (small tabletop units) to 6 liters (large console models). Runtime tells you how many hours the unit runs on a full tank—smaller units may run 8 to 12 hours, while larger ones run 24 to 48 hours. Noise level matters if you plan to use it in a bedroom; ultrasonic models are quieter (around 30 decibels), while evaporative models are louder (40 to 50 decibels).
Check the return policy before you buy, especially online. Most retailers allow 30 days, but some allow 60 or 90 days. If you are buying in-store, keep the receipt and packaging in case you need to return it. For online orders, check whether the seller covers return shipping or if you pay to send it back. Some retailers charge a restocking fee if the unit has been used, so read the fine print.
Frequently Asked Questions
Can I return a humidifier if I have already used it?
Most retailers allow returns of used humidifiers within their return window, but some charge a restocking fee or require the unit to be in "like new" condition. Check the store's return policy before you buy. If you bought online, contact the seller's customer service to ask about their specific rules for used items.
What is the difference between buying in-store and online?
In-store shopping lets you see and compare units side by side and take one home when ready. Online shopping offers wider selection, lower prices, and home delivery, but you cannot inspect the unit before it arrives. In-store pickup combines both: you order online and pick it up at the store within hours, so you get selection and speed without shipping costs.
Are store-brand humidifiers as good as name brands?
Store brands like Walmart's Great Value and Target's Room Essentials are usually made by the same manufacturers as name brands and perform similarly for basic use. They cost less but may have shorter warranties or fewer features. Read the warranty and customer reviews before you decide—some store brands are reliable, while others have higher failure rates.
Where can I find replacement filters and parts?
Replacement filters, wicks, and cleaning supplies are sold at the same retailers where you buy the humidifier—big-box stores, home improvement stores, and online marketplaces. Some manufacturers also sell parts directly on their websites. Keep your humidifier's model number handy so you order the correct replacement parts.
Do I need to buy a humidifier in winter, or can I buy it anytime?
You can buy a humidifier anytime, but selection is best in fall and prices are lowest before peak season. If you need one during winter, you may have fewer options and higher prices. If you can wait, buying in August or September gives you better deals and more models to choose from.