Update: The price has changed to $52.63 since this was originally published.

This exhaust fan is priced at $51.63, matching its all-time low on Amazon and well below the $75.44 average price over the past 90 days. It covers up to 1,200 square feet and includes a built-in thermostat that adjusts between 32°F and 130°F across three speeds. Installation only requires a standard electrical outlet. Buy Now at Amazon

At Amazon, get this Portable Personal Air Cooler Fan for $40. It's the best price Amazon has charged for this fan. It holds a 1200 mL water tank, runs on just 8-10 watts of power, and includes a remote control with an 8-hour timer. Buy Now at Amazon

Amazon has the Vornado Transom window fan for $63.97, the lowest price we've seen and $36 less than Walmart charges right now. It offers 4 speed settings, an electronically reversible fan mode for both exhaust and intake airflow, and remote control operation. Buy Now at Amazon

This BougeRV F02 fan is $40, down from $80. It's the best price Amazon has charged for this model. It runs on a removable 18V 144Wh battery for up to 72 hours of cordless use, or plugs into AC power for unlimited runtime, and includes built-in LED lighting and a 210-degree tilt for flexible placement. Buy Now at Amazon

At Amazon, add this 42.8" Oscillating Tower Fan to your cart to drop the price to $67.99 automatically at checkout. It's the best price Amazon has charged for this model. It offers app, remote, touch, and voice control, along with 4 speeds and 4 modes including a sleep mode that gradually lowers airflow overnight. Buy Now at Amazon

At Amazon, get this Portable Misting Fan for $59. It's the best price Amazon has charged for this model. It pairs a 30,000mAh rechargeable battery with a 2-liter misting tank and 120° oscillation, plus remote control and a built-in LED light for use away from an outlet. Buy Now at Amazon

At Amazon, for Prime members only, the Nuwave Forever Smart Air Purifier is $337, down from its regular $450 price. That's also below the previous Amazon low of $350, so this is an all-time price low. It ships for free. You never have to buy a replacement air filter because the filters in it are washable and reusable. Buy Now at Amazon

The Dyson PH03 has just fallen to $500, which is Amazon's lowest-ever price. That's almost half its original price of $950. This model purifies, humidifies, and cools in a single machine, using a fully sealed HEPA H13 filter that captures 99.97% of particles as small as 0.3 microns. Water passes through a UV light before it's released as mist, addressing the mold and bacteria buildup common in standard humidifiers. The one-gallon tank runs for up to 36 hours before it needs a refill. Shipping is free for Prime members.  Buy Now at Amazon

At Amazon, get this Lecoolife 10-in-1 Indoor Air Quality Monitor for $66. It's the best price Amazon has charged for this model. It tracks ten indoor readings at once, including PM1.0, PM2.5, PM10, HCHO, and TVOC levels, along with temperature and humidity, displayed on a large color screen with real-time AQI alerts. Buy Now at Amazon

At Amazon, get the Filtrete 14x36x1 MPR 700 Air Filter 6-Pack for $24.12 when you check out with Subscribe & Save. It's the best deal we could find by $31. Each filter is rated MPR 700, equivalent to MERV 8, and is designed to last up to 3 months. Buy Now at Amazon

The dreame Aqua10 Ultra is $650 with Prime, down from $900. It's $350 less than our mention from June and the best deal we've seen for this model. It includes a self-emptying, self-cleaning dock that washes its mop roller at 212°F and can go up to 100 days between manual dust bag changes. The vacuum also uses 30,000Pa suction and a detangling roller brush designed to prevent hair from clogging. Buy Now at Amazon

This Shark Matrix Plus 2-in-1 robot vacuum and mop is $299.98, down from $699.99 and the best price we could find by $100. It combines vacuuming and sonic mopping in one pass, empties itself into a bagless base that can hold up to 60 days of debris, and uses 360° LiDAR mapping to navigate the home. The HEPA filtration system captures 99.97% of dust and allergens down to 0.3 microns. Buy Now at Amazon

At Amazon, get the Shark AV2501AE AI Robot Vacuum for $270. It's the best price we could find by $270. Shipping is free. Buy Now at Amazon

At Amazon, get the Garvee 9000 BTU Mini Split AC/Heating System for $357. It's the best deal that Amazon has ever offered for this model. It combines 9,000 BTU of cooling and heating with a 17 SEER2 efficiency rating and quiet operation as low as 24-26 dB. Shipping is free. Buy Now at Amazon

This is a great deal on the Shark NV752 Rotator-Powered vac is down to just $250 at Amazon. That's $149 cheaper than what you'd pay elsewhere, including at Walmart. It includes a Pet Power Brush, upholstery tool, and crevice tool for tackling pet hair and tight spaces, along with a washable HEPA filter for allergen control. Shipping is free, too. Buy Now at Amazon

In this sale at Amazon Haul, you'll find deals on a large selection of cheap, clearance home items, cables, tools, apparel, and more. Everything is priced at $5 or less. Shipping is free on Amazon Haul orders of $25 or more. Buy Now at Amazon

At Amazon, the Active 12-Count Toilet Bowl Cleaner Tablets are $10.77 after an on-page coupon and Subscribe & Save. That's $9 below the original price and the lowest we've seen. Shipping is free for Prime members.  Buy Now at Amazon