Air conditioners are typically large, difficult to move and have a significant carbon footprint, which makes the price for a habitable temperature a net negative for the environment. Fortunately, cooling technology is always improving. For instance, the EvaChill EV-500 is a personal AC that’s compact, powerful, eco-friendly and portable, and right now it’s on sale for just $99, or 22 percent off.

The EvaChill EV-500 works fast, dropping the air temperature up to 59 degrees in 10 minutes. This air conditioner works by saturating cooling pads with water and blowing air through them. The water evaporates and the temperature around you lowers while the air is also lightly humidified. This process limits energy consumption, so the EvaChill doesn’t require nearly as much electricity as a traditional AC. The replacement cartridges are even made of a mineral compound that’s completely biodegradable and won’t hurt the environment.

This portable air personal air conditioner is extremely intuitive, and even won the Red Dot Design Award in 2019. It sets up with one button and emits a soft blue light while it works. Along with reducing the temperature of a room, the EvaChill EV-500 also filters out dust particles to improve the air quality. You also don’t have to worry about bacteria or mold spreading thanks to the 100 percent inorganic replaceable cooling cartridges.

The EV-500 can improve the quality of your rest, too. Sleeping in a temperature-controlled, slightly humidified, clean room can have a pleasantly soporific effect that you will crave as the weather grows warmer and the air gets drier.

Weighing less than two pounds, you can carry the EvaChill EV-500 Personal Air Conditioner + Cartridge wherever you go and cool any room you find yourself in. Right now, this portable air conditioner is on sale for $99, a 22 percent discount from its regular listed price of $128.