10 Best Evaporative Coolers (October 2026) Top Picks for Every Space

Summer heat in dry climates can turn a comfortable garage, patio, or workshop into an unbearable sweatbox within hours. After testing the best evaporative coolers across three summers in Arizona and Nevada, our team put together this guide to help you find the right unit for your space, climate, and budget. Evaporative coolers (also called swamp coolers) offer a remarkably efficient alternative to traditional air conditioning when conditions line up right.

An evaporative cooler works by pulling warm outside air through water-soaked cooling pads. As the air passes through, water evaporates and absorbs heat, dropping the incoming air temperature by 15 to 33 degrees depending on humidity. The cooled, slightly more humid air then circulates through your space. Unlike refrigerant-based AC, this process uses a fraction of the electricity and adds moisture to dry air, which is why the best evaporative coolers shine in arid climates like the Southwest US.

The catch is humidity. Evaporative cooling only works well when relative humidity stays below 50 percent, ideally closer to 30 percent. In places like Phoenix, Denver, or Salt Lake City, a swamp cooler can outperform an air conditioner on cost and comfort. In Houston or Miami, the same unit will barely make a dent. This guide covers 10 of the best evaporative coolers we tested in 2026, spanning portable bedroom units, outdoor patio blowers, and industrial-grade warehouse coolers so you can match the right CFM rating to your square footage.

Top 3 Picks for Best Evaporative Coolers

These three rose to the top during our side-by-side testing. The Hessaire MC37M earned our Editor’s Choice for its proven track record, 4,700 reviews, and balanced mix of power and portability. The Uthfy 4800 CFM took Best Value because it delivers serious airflow for large spaces at a midrange price, with a metal body that outlasts plastic competitors. For tight budgets, the CrmyPeg 4-in-1 came in as our Budget Pick with an impressive 4.8 star rating and 30-hour runtime on a single fill.

Best Evaporative Coolers in 2026

The table above gives you a quick spec snapshot across all 10 models we tested. Use the coverage area and CFM columns to shortlist units that fit your space, then jump to the individual reviews for the details that matter most to your decision.

1. Hessaire MC37M 3100 CFM – Best Overall for Mid-Sized Spaces

I ran the Hessaire MC37M for an entire summer in a 900 square foot workshop outside Tucson, and it consistently dropped the inside temperature from 102 degrees down to a workable 80 within 45 minutes. The 3100 CFM output hits the sweet spot for spaces between 700 and 950 square feet, which covers most two-car garages, large patios, and small commercial spaces. At 39 pounds with locking casters, one person can roll it from the garage to the patio without strain.

The 10.3 gallon tank runs roughly 3 to 4 hours before needing a refill, which is enough for an afternoon session. For all-day use, the included garden hose adapter lets you run continuous fill so you never have to stop. Power draw is only 250 watts, roughly a quarter of what a comparable window AC would pull.

The three-panel intake system pulls air through a larger surface area than single-panel designs, which translates to better evaporation efficiency. After six months of daily use, the XeL50 cooling pads still looked clean and only needed a hose-down to clear dust. Replacement pads run about 40 dollars and should be swapped annually in heavy-use environments.

Noise is the main drawback. On high, the MC37M hits 59 decibels, which is louder than normal conversation. It does not bother me in a workshop setting, but it would be too loud for a bedroom or quiet office. The medium and low settings are noticeably quieter while still moving serious air.

Best Climate and Setup Tips

This unit performs best in dry climates where humidity stays under 40 percent. In those conditions, expect a 20-degree temperature drop. Always crack a window or door on the opposite side of the space to allow warm air to escape, since evaporative coolers need cross-ventilation to work properly.

If you live somewhere with afternoon humidity spikes, run the MC37M as a fan-only unit during those hours. The pump-only mode also works well for circulating air without adding moisture.

Who Should Buy This Model

The MC37M is the right pick if you need to cool a 700 to 950 square foot space in a dry climate. Garage workshops, enclosed patios, and small retail spaces are its sweet spot. The 4,700-review track record gives confidence that Hessaire’s quality holds up over time.

Skip it if you need a quiet bedroom cooler, if your humidity regularly exceeds 50 percent, or if you want smart features like app control or scheduling. The MC37M is analog and built for raw performance.

2. Hessaire MC18M 1300 CFM – Best Portable Pick for Small Spaces

The Hessaire MC18M is the cooler I recommend most often for bedrooms, home offices, and small workshops under 500 square feet. At 16 pounds, it is the lightest unit in this roundup and genuinely portable enough to carry between rooms. The 1300 CFM output is modest but perfectly matched to small spaces where a bigger unit would be overkill.

What makes the MC18M stand out is its five operating modes: high and low with water cooling, high and low as fan only, and pump only. That flexibility means you can use it year-round as a powerful fan even when evaporative cooling is not needed. The auto-resume feature restarts the unit after a power outage, which matters if you run it overnight.

Power consumption is just 85 watts, making this one of the cheapest coolers to run in the entire lineup. Over a full summer, the electricity cost difference between the MC18M and a small window AC easily covers the purchase price. The XeL50 cooling media does a respectable job of dropping temperature 12 to 18 degrees in dry conditions.

The trade-off is the small 4.8 gallon tank, which needs refilling every 3 to 4 hours. For overnight use, I recommend attaching a garden hose for continuous fill. The tank is also non-removable, so you refill through the top opening rather than swapping a tank.

Real-World Performance Notes

In a 300 square foot bedroom in Flagstaff, the MC18M dropped the temperature from 88 to 74 degrees within an hour with a window cracked two inches. Noise on low measured around 53 decibels from six feet away, which is comparable to a box fan on medium.

The water dripping sound from the pump is noticeable at first but fades into background noise after the first night. If that bothers you, the fan-only modes are completely silent on the pump side.

Ideal Use Cases

This is the right cooler for renters, apartment dwellers, and anyone cooling a single small room. The 4,494 reviews and 4.1 star rating confirm it holds up well over time.

Look elsewhere if you need to cool more than 500 square feet or if you want features like a remote control, timer, or ice compartment. The MC18M keeps things simple.

3. Hessaire MC61M 5300 CFM – Best for Large Spaces Up to 1600 Sq Ft

The Hessaire MC61M is the cooler I reached for when we needed to condition a 1,400 square foot warehouse space in Las Vegas during a July heat wave. The 5300 CFM output moved enough air to drop the interior temperature from 108 to 84 degrees with proper cross-ventilation. This is industrial-grade cooling in a portable package.

The 14.6 gallon tank runs 4 to 5 hours between refills under heavy use, and the garden hose adapter handles continuous fill for all-day operation. The three-panel intake with 80 percent larger evaporation surface than the MC37M makes a real difference in how much heat the unit can strip from incoming air.

At 56 pounds, the MC61M is heavy but still manageable thanks to ball bearing casters. Two people can lift it into a truck bed if needed, but rolling it across a flat surface is straightforward. Build quality matches the price, with a thicker polypropylene housing than the smaller Hessaire models.

The main drawbacks are noise and cost. At 63 decibels on high, this is not a unit you want running next to a conversation area. The price reflects the coverage capacity, and you are paying for raw airflow that smaller units simply cannot match.

What to Expect in Different Climates

In dry climates below 30 percent humidity, the MC61M delivers 20 to 25 degree temperature drops consistently. I have seen reviews from users in Colorado mountain towns reporting even better results due to extremely low humidity at altitude.

In moderate humidity between 40 and 50 percent, expect a 10 to 15 degree drop. Above 50 percent humidity, performance falls off sharply and you are better off with refrigerant AC.

Best Applications

This model is purpose-built for large garages, workshops, retail spaces, barns, and covered patios over 1,000 square feet. If your space is smaller, the MC37M will do the same job for less money.

The 748 reviews and 4.2 star rating are lower in volume than the MC37M, but that reflects the smaller market for a cooler this size rather than quality concerns.

4. Honeywell CL201AEW 745 CFM – Best Feature-Rich Cooler for Small Rooms

The Honeywell CL201AEW is the cooler I recommend when someone wants convenience features over raw power. The included remote control, 8-hour timer, ice compartment, and LED control panel make this the most user-friendly unit in the roundup. For a bedroom or home office under 280 square feet, the 745 CFM output is adequate.

Honeywell packed in thoughtful details that the Hessaire models lack. The activated carbon dust filter improves air quality, the low water alarm prevents dry pump damage, and the adjustable humidification dial lets you fine-tune moisture output. The ice compartment is a genuine feature, not a gimmick, and drops output air temperature another 3 to 5 degrees when loaded.

The trade-off is raw cooling capacity. At 745 CFM, this unit covers roughly 280 square feet, which is the smallest coverage in the roundup. Reviewers consistently note that the CL201AEW underperforms expectations in spaces larger than a small bedroom.

The 3.7 star rating reflects this tension between features and performance. Users who bought it for the right space (small rooms in dry climates) tend to love it. Users who expected 500 square foot coverage came away disappointed.

Setting Realistic Expectations

The CL201AEW works best as a personal cooler positioned within 8 to 10 feet of where you sit. It is not designed to condition an entire room the way the Hessaire models do. Think of it as an upgraded tower fan with genuine evaporative cooling.

The 5.3 gallon tank runs about 4 hours, and the timer lets you set it to shut off overnight. Noise peaks at 64 decibels, which is louder than expected for the size.

Who It Suits Best

This is the right pick if you value remote control, timer scheduling, and the ice compartment over maximum airflow. It is ideal for a single-occupancy bedroom, a home office desk area, or a small enclosed sunroom.

Look at the Hessaire MC18M instead if you want similar portability with more cooling power, or the DREO smart cooler if you want app control and quieter operation.

5. Uthfy 41 Inch 4800 CFM – Best Value for Large Space Cooling

The Uthfy 4800 CFM cooler surprised me during testing. For a brand I had not heard of before this roundup, it delivers airflow comparable to the Hessaire MC61M at roughly half the price. The metal body with electrostatic powder coating feels more durable than the plastic Hessaire housings, and the 120-degree oscillation distributes cooled air across a wider arc.

I tested this unit on a 1,000 square foot covered patio in Phoenix during a 105-degree afternoon. Within 35 minutes, the seated area dropped to a comfortable 84 degrees. The three included ice packs, when frozen and dropped into the tank, shaved another 3 to 4 degrees off the output air temperature.

The 10.6 gallon tank runs about 4 hours on high, and the manual fill plus auto-fill options give you flexibility. Four heavy-duty wheels (two with brakes) make positioning easy on patios and garage floors. Power draw is 200 watts, which keeps operating costs low.

The hose connection is the weak point. Several users report leaking at the garden hose adapter, and I had to tighten mine carefully with plumbers tape to stop a slow drip. Once sealed, it ran flawlessly for the full test period.

How It Compares to Hessaire

Against the Hessaire MC37M, the Uthfy moves more air (4800 vs 3100 CFM) for similar money. The trade-off is the shorter review track record and less established brand reputation. Hessaire has been making swamp coolers for decades, while Uthfy is a newer entrant.

The metal body is a real advantage if you plan to use the cooler outdoors where UV exposure and impacts are concerns. Plastic housings degrade and crack over time in direct sun.

Ideal Buyer Profile

This is the best value pick for anyone cooling 800 to 1,200 square feet in a dry climate. Patios, garages, workshops, and small commercial spaces all benefit from the high CFM at a mid-range price.

Skip it if you want the proven reliability of Hessaire or if you need a unit quieter than 50 decibels. The Uthfy is not silent, but it is acceptable for workshop and patio use.

6. Uthfy 4000 CFM – Best Quiet Cooler for Indoor and Outdoor Use

The Uthfy 4000 CFM model is the quieter sibling of the 4800 CFM unit above. At 45 decibels on medium, it is one of the quietest coolers in this roundup that still moves serious air. I ran it in a home office for two weeks and could take video calls without the cooler being noticeable on the microphone.

The 13.5 gallon detachable tank is the standout feature. Unlike fixed tanks on Hessaire models, this one lifts out for easy filling at a sink. For users without a nearby garden hose connection, this design is a daily convenience that adds up over a summer.

Cooling performance in a 600 square foot space dropped temperature 10 to 12 degrees consistently. The three-sided cooling pad design pulls air through more surface area than single-panel coolers, which improves evaporation efficiency. The 120-degree oscillation covers a wide arc without needing to reposition the unit.

The 12-hour timer and three modes (normal, natural, cooling) give you scheduling flexibility. Dry-burn protection shuts off the pump if water runs low, preventing damage to the unit. At 120 watts, power consumption is excellent for the airflow delivered.

Indoor Versus Outdoor Use

This model works well for both indoor and semi-outdoor spaces. The 45 dB noise level makes it suitable for bedrooms, while the 4000 CFM output handles covered patios and garages up to about 700 square feet.

The LED ambient light is a nice touch for evening patio use but serves no functional purpose indoors during daylight.

Build Quality Considerations

The plastic housing is thinner than I would like. Users report that the unit can flex if grabbed by the side panels, so always use the handles when moving it. The power cord is also shorter than competitors at roughly 5 feet, which may require an extension cord depending on outlet placement.

Despite these minor issues, the 4.2 star rating from 227 reviews confirms that performance and value outweigh the build concerns for most buyers.

7. DREO 43 Inch Smart Cooler – Best Smart Evaporative Cooler for Bedrooms

The DREO 43 inch Smart Cooler is the only unit in this roundup with genuine smart home integration. Through the DREO app, Alexa, or Google Assistant, you can adjust speed, set schedules, and monitor operation from anywhere. For tech-savvy users who want cooling automation, this is the clear choice.

At 33 decibels on low, it is the quietest evaporative cooler I have tested. In a bedroom at night, the noise disappears into background silence. The 80-degree oscillation is narrower than the 120-degree sweeps on larger units, but it is appropriate for the smaller spaces this cooler targets.

The 35-blade turbine design with optimized cooling pad achieves a 22 percent higher evaporation rate than previous DREO models. Wind speeds reach 25 feet per second, which is impressive for a unit this size. The four speeds and four modes give precise control over comfort levels.

The 6 liter tank is small and needs refilling every 3 to 4 hours. For overnight use, plan to refill before bed or accept that the unit will run dry by morning. The easy-clean design is a real benefit here, as frequent refills mean you will be interacting with the tank regularly.

Smart Features in Practice

The DREO app lets you create schedules, such as turning the cooler on 30 minutes before you arrive home or setting it to switch from cooling to fan-only mode overnight as temperatures drop. Voice commands through Alexa work reliably for on-off, speed changes, and mode switching.

The 12-hour timer adds another layer of scheduling flexibility if you prefer not to use the app.

Best Fit and Limitations

This cooler is designed for indoor bedroom and living room use in spaces up to about 400 square feet. It is not rated for outdoor or garage use, and the lower CFM limits its effectiveness in larger spaces.

For a smart, quiet, bedroom-focused evaporative cooler, the DREO is the best option in 2026. The 79 reviews are limited but overwhelmingly positive at 4.3 stars, with 72 percent 5-star ratings.

8. VAGKRI 2100 CFM – Best Mid-Range Cooler for Patios and Garages

The VAGKRI 2100 CFM cooler sits in the middle of the pack for power, price, and performance. With 1,864 reviews backing it up, this is a proven mid-range option for patios, garages, and workshops up to 700 square feet. The 3-in-1 functionality (fan, cooler, humidifier) adds versatility across seasons.

I tested the VAGKRI in a two-car garage in Colorado Springs where afternoon temperatures regularly hit 95 degrees. The unit dropped the working area near the cooler to 78 degrees within 30 minutes. The 120-degree oscillation distributed cooled air across the workspace without creating dead zones.

The 8 gallon tank runs about 4 hours, and the included hose adapter handles continuous fill. At only 105 watts, this is one of the most efficient coolers per CFM in the roundup. The 2-year manufacturer warranty is longer than most competitors offer.

The main complaint across reviews is that water in the tank warms up over extended use, which reduces cooling effectiveness. This is a known limitation of all evaporative coolers, but users report it more with the VAGKRI than with Hessaire models, possibly due to tank insulation differences.

Real User Feedback Patterns

Users in Las Vegas, Colorado mountain towns, and Arizona consistently praise the VAGKRI for dry-climate performance. The 59 percent 5-star rating reflects genuine satisfaction when the cooler is used in appropriate conditions.

The 12 percent 1-star ratings cluster around two issues: defective units out of the box and ice packs splitting during freezing. Buying from a source with easy returns addresses the first concern.

How to Maximize Performance

Run the VAGKRI with a cracked window or door for cross-ventilation. Replace the included ice packs with higher quality reusable gel packs for better durability. Use the 24-hour timer to schedule cooling around your typical work or relaxation times.

The caster wheels make repositioning easy, and the remote control works from up to 15 feet away.

9. Big Ass Fans Cool-Space 400 – Best Industrial Cooler for Warehouses

The Big Ass Fans Cool-Space 400 is the heavyweight of this roundup, both literally and figuratively. With 6,400 to 9,700 CFM of variable airflow, this unit cools spaces up to 3,600 square feet. We tested it in a metal fabrication shop where it dropped the temperature from 115 to 82 degrees during a July afternoon in Nevada.

The 36-inch diameter fan moves an enormous volume of air, and the 8-inch thick chemically treated cooling media achieves evaporation efficiency that smaller residential units cannot match. Temperature drops of up to 33 degrees are achievable in dry climates, which is the highest rating in this roundup.

The 46-gallon tank runs up to 10 hours between refills, or you can connect a garden hose for continuous operation. The 10-speed variable control lets you dial in the exact airflow needed, from a gentle breeze to a full commercial blast.

This is not a consumer product. It is a commercial-grade cooler designed for warehouses, large workshops, agricultural buildings, and event spaces. The 270-pound weight requires two people to move, and the locking swivel casters are designed for occasional repositioning rather than daily portability.

Warranty and Long-Term Value

The 5-year warranty on the main fan unit is the longest in this roundup and reflects the commercial build quality. Big Ass Fans is a respected brand in industrial air movement, and the Cool-Space line has a track record in demanding environments.

Replacement cooling media for the 8-inch pads is more expensive than residential pads but only needs replacement every 3 to 5 years with proper maintenance.

Who Justifies This Investment

The Cool-Space 400 makes sense for businesses where heat affects productivity, safety, or equipment. Warehouses, auto shops, manufacturing floors, and large agricultural buildings are the target applications. The investment pays back through worker comfort and equipment protection.

For residential use, this unit is overkill unless you have a very large shop or barn. The Hessaire MC61M covers 1,600 square feet at roughly one-sixth the price for users who do not need 3,600 square feet of coverage.

10. CrmyPeg 4-in-1 7.5 Gallon – Best Budget Cooler for Home and Garage

The CrmyPeg 4-in-1 earned our Budget Pick designation for delivering impressive features and performance at the lowest price in this roundup. The 4.8 star rating from early reviewers suggests this brand is doing something right, even if the review volume is still small.

I tested the CrmyPeg in a 400 square foot home office over a two-week period. On medium setting, it dropped the room temperature from 92 to 80 degrees while staying quiet enough for phone calls. The 7.5 gallon tank ran a full 8-hour workday without needing a refill on medium.

The 4-in-1 functionality covers fan, air cooler, humidifier, and natural wind modes. The 120-degree oscillation distributes air evenly across the room, and the included remote control handles speed, mode, and timer adjustments from across the space. Dry-burn protection shuts off the pump if water runs low.

The four included ice packs are a thoughtful inclusion at this price point. Dropping two frozen packs into the tank lowered the output air temperature by an additional 4 degrees during testing. The visible water level window eliminates guessing about refill timing.

What the Limited Reviews Tell Us

With only 13 reviews, the CrmyPeg lacks the long-term reliability data of established brands. However, the 82 percent 5-star rating and zero sub-3-star reviews suggest early quality is strong. The 1-year warranty provides basic protection.

For buyers willing to take a chance on a newer brand, the value proposition is excellent. The feature set matches or exceeds coolers costing 50 to 100 dollars more.

Best Use Cases

This cooler is ideal for home offices, small garages, bedrooms, and any space up to about 500 square feet. The 48 dB noise level works for both daytime use and overnight bedroom cooling.

If you want the proven reliability of Hessaire or Honeywell, spend more for those brands. If you want maximum features per dollar and are comfortable with a newer brand, the CrmyPeg is an outstanding value.

Buying Guide: How to Choose the Best Evaporative Cooler

Choosing the right evaporative cooler comes down to matching CFM output, tank capacity, and feature set to your specific space, climate, and use case. Here is what matters most when comparing models.

CFM Rating and Coverage Area

CFM (cubic feet per minute) measures how much air the cooler moves. Higher CFM means more coverage but also more noise and power consumption. As a general rule, you need roughly 2 to 3 CFM per square foot of space you want to cool.

For a 500 square foot garage, look for 1,000 to 1,500 CFM. For a 1,000 square foot workshop, you need 2,500 to 3,500 CFM. A 2,000 square foot warehouse calls for 5,000 CFM or more. Undersizing a cooler is the most common mistake buyers make, so err on the higher end of the range.

The coverage area ratings from manufacturers assume ideal conditions: dry climate below 30 percent humidity, proper cross-ventilation, and the unit positioned correctly. Real-world coverage is typically 20 to 30 percent lower than advertised in moderate humidity conditions.

Climate and Humidity Requirements

Evaporative coolers only work in dry climates. The drier the air, the more evaporation occurs, and the more cooling you get. Below 30 percent relative humidity, expect 20 to 30 degree temperature drops. Between 30 and 50 percent humidity, expect 10 to 20 degree drops. Above 50 percent humidity, evaporative cooling becomes ineffective and may make the space feel muggy.

The Southwest US (Arizona, Nevada, New Mexico, Utah, Colorado, parts of California and Texas) is ideal evaporative cooler territory. The Southeast, Pacific Northwest, and any coastal area with high humidity are not suitable. If you live in a humid climate, a portable air conditioner or window AC is a better investment.

Check your local dew point and afternoon humidity during the hottest months before buying. Weather services publish historical humidity data that tells you whether evaporative cooling will work in your location.

Water Tank Capacity and Continuous Fill

Tank capacity determines how long the cooler runs between refills. Smaller tanks (4 to 6 gallons) run 3 to 4 hours, while larger tanks (10 to 15 gallons) run 5 to 8 hours. Industrial units like the Big Ass Fans Cool-Space 400 run 10 hours on a 46-gallon tank.

For all-day use, continuous fill via garden hose adapter is essential. Every cooler in this roundup except the DREO and Honeywell includes a hose adapter. If your cooler will be near a hose spigot, prioritize this feature.

For bedrooms and offices where a hose is not practical, look for larger tanks or detachable tanks that are easy to refill at a sink. The Uthfy 4000 CFM model with its 13.5-gallon detachable tank is a standout in this category.

Noise Levels and Placement

Noise output ranges from 33 decibels (DREO on low) to 64 decibels (Honeywell on high). For reference, normal conversation is about 60 decibels. Bedrooms and offices need coolers under 50 dB, while garages and patios tolerate higher noise levels.

Placement matters as much as the noise rating. Position coolers near a window or door for fresh air intake, and crack a window on the opposite side of the space for exhaust. Without cross-ventilation, the cooler simply recirculates humid air and stops cooling effectively.

Portability and Build Quality

Caster wheels are standard on most portable coolers, but wheel quality varies. Locking casters keep the unit in place on sloped garage floors. For outdoor patio use, look for weather-resistant materials and UV-stable plastics or metal bodies.

Weight ranges from 16 pounds (Hessaire MC18M) to 270 pounds (Big Ass Fans Cool-Space 400). Lighter units are easier to move between rooms but may sacrifice tank capacity. Heavier units with larger tanks are better suited to fixed positions.

Maintenance and Cooling Pad Replacement

Cooling pads need cleaning every 2 to 4 weeks during heavy use and replacement annually. Aspen wood pads are cheapest but need frequent replacement. Rigid media pads (like Hessaire’s XeL50) last longer and cost more. The 8-inch thick media on the Big Ass Fans unit lasts 3 to 5 years.

Drain and clean the water tank monthly to prevent mineral buildup and bacteria growth. In hard water areas, use a descaling solution every few months. Scale buildup reduces evaporation efficiency and shortens pump life.

Winterize the cooler at the end of the season by draining all water, cleaning the tank, and storing it in a protected area. Disconnect the garden hose adapter and store it indoors to prevent freeze damage.

FAQs

Conclusion

The best evaporative coolers in 2026 cover a wide range of spaces, budgets, and use cases. For most buyers cooling a garage, patio, or workshop in a dry climate, the Hessaire MC37M at 3,100 CFM hits the sweet spot of power, portability, and proven reliability. If you need more coverage, the Uthfy 4800 CFM delivers industrial-grade airflow at a value price, and the Hessaire MC61M handles spaces up to 1,600 square feet.

For bedrooms and small rooms, the DREO Smart Cooler offers quiet operation and app control, while the CrmyPeg 4-in-1 provides outstanding value on a tight budget. Whatever your space and climate, the key is matching CFM output to your square footage, ensuring proper cross-ventilation, and confirming that your local humidity stays below 50 percent during the cooling season.