Independent buying guidance · US editionHow we work
Gearjury
All categories
All categories
Meat thermometersView all 168 →
By foodTurkeyChickenSteakPrime ribPorkPork chopsShow all (40) →
By cooking methodOven safeOvenSmokerSmokingDigital ovenDeep fryShow all (31) →
By typeWirelessInstant readDigitalBluetoothDigital instant readQuick readShow all (82) →
BrandsThermoProTaylorMEATERThermoWorksThermapenWeberShow all (27) →
Best picksGood Meat Thermometers for Every Kind of Cook
WiFi extendersView all 133 →
By place and useHomeTvLongRvOutsideLong outdoorShow all (44) →
By typeEthernet portDual bandMeshEthernetPowerlinePlugShow all (44) →
Setup and helpSetupSet upAppConfigureSetWpsShow all (23) →
BrandsNETGEARTP-LinkRingLinksyseeroStarlinkShow all (24) →
Best picksBest WiFi Extenders: Which Range Extender Should You Buy?
Dash camsView all 124 →
By vehicleMotorcycleTruckTeslaSemi truckMercedesMercedes benzShow all (47) →
By featureFront rearWirelessRear view mirrorMode parking360MirrorShow all (121) →
Installation and accessoriesInstallHardwire kitMountMicro sd cardSd cardHardwireShow all (46) →
BrandsVIOFOGarminVantrueREDTIGERBlackVueROVEShow all (22) →
Best picksBest Dash Cams for Cars in 2026
Radar detectorsView all 123 →
By typeLaserWindshield mountWindow mountLaser jammerMountAppShow all (67) →
By vehicle and roadMotorcycleBikeMounting motorcycleAdaptiv tpx motorcycleTruck
Rules and how they workIllegal statesJammersLegalUtah lawsLaws by stateLegal statesShow all (41) →
BrandsEscortUnidenCobraValentineK40Valentine OneShow all (25) →
Best picksBest Radar Detectors for Cars: Models Compared
Winter glovesView all 76 →
By who wears themWomenMenLeather menLeather womenWaterproof womenMen dressShow all (41) →
By activityWorkCyclingBikeWorkingBike ridingMotorcycleShow all (46) →
By feature and materialHeatedWaterproofInsulatedLeatherTouch screenTouchscreenShow all (36) →
BrandsNikeCarharttNorth FaceBlack DiamondUnder ArmourHestraShow all (12) →
Best picksGood Winter Gloves for Cold Weather: Five Useful Picks
HeadlampsView all 65 →
By activityBikeRunningCyclingHuntingRunnersHikingShow all (33) →
By featureRechargeableRechargeable batteryRedRechargeable batteriesBrightestFlashlight rechargeableShow all (48) →
BrandsBlack DiamondCOASTMilwaukeePetzlFenixNitecoreShow all (24) →
How-to guidesHow to Clean a Headlamp Without Damaging ItHow to Clean Headlamp Glass Without Damaging the…How to Choose a Headlamp for ReadingWhat Is a Headlamp and How Do You Choose the Right…Black Diamond Headlamp User Guide
Best picksBest Headlamps: Six Lights Compared for Different Uses
Cordless strimmersView all 58 →
By battery and powerCordlessBattery poweredBattery operatedBattery powerCordless batteryBatteryShow all (76) →
By typeMiniBlade
BrandsRyobiSTIHLBlack And DeckerCRAFTSMANBlack DeckerDEWALTShow all (27) →
How-to guidesHow to Restring a Milwaukee Battery Weed EaterHow to Restring a DEWALT Battery-Operated Weed Eater
Best picksTop 10 Best Battery-Powered Weed Eaters for Different Yards
Air coolersView all 57 →
By type and sizeSmallRoomSmall roomMiniNo windowWindowShow all (19) →
By featureSolarHeaterFilter3 in 1IceCostway 3 in 1Show all (22) →
By place and useCarHomeCampingOutdoorBedroomGarageShow all (17) →
BrandsHoneywellMideaArctic AirHessaireDeLonghiTowerShow all (12) →
Best picksBest Portable Air Coolers for Patios, Workshops and Small Spaces (2026)
Air purifiersView all 3 →
Best picksBest Air Purifier for Bedroom in the US
Buying guideHow to Choose an Air Purifier for Your Home
Head to headLevoit Core 300S-P vs Blueair 511 vs Coway Mighty
Best picksBest Air Purifier for Bedroom in the US: Quiet Models Compared
United StatesEnglish

Choose your edition

TrendingBest Portable Air Coolers for Patios, Workshops…Top Rated Portable Air Coolers Compared by…Honeywell Portable Air CoolersMidea Portable Air Coolers

Category hub

Indirect Evaporative Air Coolers: How They Work

Indirect evaporative cooling transfers heat through a heat exchanger, so supply air can be cooled without directly adding moisture.

An indirect evaporative air cooler uses a heat exchanger to cool the supply stream while a separate airstream passes through wet media. This matters when you want evaporative cooling with less added humidity in delivered air. Compare capacity, airflow, installation design and climate suitability.

Indirect Evaporative Air Coolers: How They Work

Our picks

Top picks

Compare them side by side →

Common questions

Questions before you buy

How does indirect evaporative cooling work?

A heat exchanger transfers heat from supply air to a separate evaporatively cooled airstream, keeping moisture out of supply air.

Does an indirect evaporative cooler add humidity indoors?

The indirect stage does not directly humidify supply air; behavior depends on design and any direct stage.

What is the difference between direct and indirect cooling?

Direct systems pass air through wet media and add moisture. Indirect systems use a heat exchanger and separate wet airstream.

Can indirect evaporative cooling work in humid climates?

It avoids direct moisture addition, but performance depends on conditions and system design.