This 6-liter capacity means fewer refills, which suits larger rooms or anyone who doesn't want to top off water daily, and it switches between warm and cool mist depending on the season. It's currently $10 off the $90 list price at Amazon. Buy Now at Amazon

This tankless system filters water right at the counter without plumbing modifications, which suits renters or anyone wanting cleaner drinking water without a permanent installation, and Walmart has it marked down $100 from the usual $300. Buy Now at Walmart

Switching between pedestal and table modes makes this a solid option for small spaces where you need flexible cooling without owning two separate fans, and right now it's $27 off the $105 list price at Walmart. Buy Now at Walmart

Space heaters that actually heat a room without running up noise complaints are worth having for bedrooms or home offices, and this one's 1,500W output covers a decent-sized space. At $40, that's $34 (46%) off the $74 list price. Buy Now at Walmart

Cold offices or small bedrooms warm up fast with the 1,500W output, and the digital thermostat keeps it from overheating your space once set. Walmart has it for $35.99, a $24 drop from the $59.99 list price. Buy Now at Walmart

Designed for homes with pets or allergy sufferers who need regular filter swaps to keep air quality up, this replacement filter fits the Dreo HPA024 purifier and runs $16 below the $37 list price at Walmart. Buy Now at Walmart

Dry winter air in bedrooms or nurseries is where this one earns its keep, with both warm and cool mist options and a 6-liter tank that cuts down on refills. Walmart has it for $72, which is $48 off the $120 list price. Buy Now at Walmart

Swapping in a fresh filter keeps your Dreo purifier pulling allergens and odors at full strength, which matters most if you're running it daily in a bedroom or living space. Walmart has it for $22, which is $18 off the $40 list price. Buy Now at Walmart

Dust, pet dander, and smoke get pulled out of the air thanks to the HEPA filter, making this a solid pick for allergy sufferers or households with pets. It's priced at $69.99 right now, $56 below the $125.99 list price. Buy Now at Walmart

This one covers both warm and cool mist in a single unit, which suits anyone dealing with seasonal congestion or dry winter air who doesn't want two separate machines. The 6L tank means fewer refills than smaller humidifiers, and right now Walmart has it for $8 off the list price. Buy Now at Walmart

Winters feel a lot more manageable when you can heat just the room you're in instead of running central heat all day, and this one suits anyone who works from a home office or spends evenings in a single space. The 24-inch tower design also keeps it out from underfoot compared to bulkier floor units. Buy Now at Walmart

Cold home offices or bedrooms that lack dedicated heating can use this, since the PTC ceramic element heats up fast without raising your whole house's thermostat; it's $7.52 off the $75 list price. Buy Now at Walmart

Keeping bedroom air comfortable through dry seasons is the main job here, and the app control lets you adjust settings without getting out of bed; it's $15 off the $55 list price at Amazon. Buy Now at Amazon