Evaporative Cooling.

An evaporative cooler works by blowing water-cooled air. It can be a free-standing unit in your room, or a window-mounted unit, or a whole-house unit.

Evaporative coolers use a lot less electricity than an regular air conditioner, and they work well in dry climates (like Nevada, West Texas, etc.)—but they don't work in very humid climates at all. These coolers use only about 3 to 15 gallons of water a day, too. (source) Portable floor-standing units start at around $100.

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UV Air Purifiers in Houston TX.

MVP Air Conditioning & Heating, LLC provides residents and businesses in the Greater Houston area, AC & Heating repairing & selling. Company for both residential homes and commercial businesses, in our company we aim to provide quality highest products as: Aprilaire Air Cleaners, Dehumidifiers, UV Air Purifiers. Our exceptionally skilled staff is committed to providing the highest level of customer service and they will meet all your needs and ensure that your home or business is comfortable and safe. We offer: A/C & Heating Repair Installation & Products, Air Conditioning & Heating Services, like an Air Conditioning Contractor based in Houston TX we can help you with: Cooling Systems, AC and Heating Services, etc.