We are in a very dry climate. no humidity. i want to use indoors mainly. why do i need to keep a window open? is it dangerous not to?

The ability of a swamp cooler to cool air is entirely dependent upon the incoming air being dry (in the wet-bulb sense.) Essentially, once the air is too wet, it won't take up any more heat. A swamp cooler of this size can saturate the air in a 500 sqft of area in just a few hours, and then it will no longer cool THAT air if it is going in the back. So, it will work best if you put the swamp cooler in an open door or window (or otherwise dry area) to ensure air going into the back is always dry. It's not dangerous to not open a door or window. It just literally won't do anything but be a big expensive fan. I would recommend getting a coupld of small thermometer/hydrometers to monitor your situation along with this. There are cheap LCD ones available here on Amazon. Put one on the back of the unit to monitor the air going into it, and one in the area you intend to cool to make sure humidity doesn't get high.

How do you get rid of the smell when just out of the box and turned on for the first time?

Did you put water in it? Mine didnt have a smell

Will it use regular water or does it need distilled water? Is distilled water better for it? Thanks

Regular water works just fine that's what I use but the only downfall to using regular water here in Arizona is because it's hard water the back of the item turns white from all the calcium in the hard water which means you have to clean it more often so to answer your question you definitely should use distilled water anything is better than tap water from Arizona

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Hessaire MC18V Portable Evaporative Cooler, Green, 1300 CFM, Cools 500 Square Feet

Hessaire MC18V Portable Evaporative Cooler, Green, 1300 CFM, Cools 500 Square Feet

Product ID: 191016519

Details

Air Flow Capacity
1300 cfm
Brand
Hessaire
Color
Green
Controls Type
Button
Floor Area
500
Item Weight
19 pounds

⚡50% energy savings

💧4.8-gallon water tank

💨1300 CFM airflow

R5411

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Description

💨 Stay cool, save green, and lead the pack with eco-smart comfort!

DESIGNED FOR DRY CLIMATES - Optimized to boost humidity and cool hot, dry air—ideal for beating the heat where it counts.
POWERFUL 1300 CFM AIRFLOW - Experience refreshing cool air that covers up to 500 sq ft—perfect for your home or office sanctuary.
EFFORTLESS SETUP MAINTENANCE - Plug, fill, and switch on—plus easy filter drying to keep your cooler fresh and mildew-free season after season.
ECO FRIENDLY ENERGY EFFICIENT - Cut your electricity use by half while staying cool, thanks to water-based evaporative technology—no harmful refrigerants here.
CONTINUOUS COOLING WITHOUT INTERRUPTIONS - 4.8-gallon tank with float valve and hose adapter means up to 4 hours of uninterrupted chill time or endless flow with garden hose hookup.

The Hessaire MC18V Portable Evaporative Cooler delivers 1300 CFM of cool airflow to efficiently chill spaces up to 500 square feet. Designed for dry climates, it uses a 4.8-gallon water tank with continuous fill capability, saving up to 50% energy compared to traditional AC units. Lightweight and portable with simple manual controls, it’s an eco-friendly, cost-effective solution for refreshing indoor air without refrigerants.

Specifications

ASIN	B085LQZV8L
Additional Features	Portable
Air Flow Capacity	1300 cfm
Best Sellers Rank	#1,405,887 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,073 in Portable Air Conditioners
Brand	Hessaire
Brand Name	Hessaire
Color	Green
Controls Type	Button
Customer Reviews	4.1 out of 5 stars 470 Reviews
Floor Area	500 square_feet
Form Factor	Personal
Included Components	fan-only,handle,manual
Item Dimensions D x W x H	20"D x 13"W x 32"H
Item Nype Name	MC18V
Item Weight	19 pounds
Manufacturer	Hessaire
Manufacturer Part Number	MC18V
Material	ABS Plastic
Material Type	ABS Plastic
Model Name	MC18V
Model Number	MC18V
Mounting Type	Freestanding
Number of Items	1
Number of Speeds	2
Operation Mode	Manual
Recommended Uses For Product	Residential
Reservoir Capacity	4.8 gallons
Size	MC18V
Software Update Supported to Date	unknown
Special Feature	Portable
UPC	818015026232
Unit Count	1 Count
Voltage	115 volts
Warranty Description	1 yr warranty from date of shipment from vendor
Wattage	110 watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R5411

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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