Choosing an air cooler: tank size, air throw and room size

An air cooler is the most cost-effective way to survive a North Indian summer — if it's sized for the room. Too small and it just blows warm air; too big and you're refilling water you didn't need.

Three numbers to check

1. Tank capacity (litres) — how long it runs between refills. 100 L comfortably lasts a night in most rooms.
2. Air throw (feet) — how far the cool air reaches. Measure your room's longest side and pick a throw at least that long.
3. Power (watts) — coolers use a fraction of an AC's power; 200–360W is typical.

Matching the room

Room	Area	What to pick
Bedroom	up to ~150 sq ft	100 L, 50–60 ft throw — like the Windpro
Living room	150–300 sq ft	100 L, high-speed fan — like the Sultan-100
Hall, shop, office	300+ sq ft	150 L, 100 ft throw — like the Sultan-150

Get more cooling from any cooler

• Cross-ventilate. Open a window on the opposite side so humid air can escape.
• Use cold water (or ice) in peak afternoon heat for a few degrees extra.
• Clean the honeycomb pads every few weeks — clogged pads cool far less.

Desert coolers work best in dry heat. In very humid coastal weather, run them with plenty of ventilation.

Ready to choose? Try the product finder or enquire with a dealer for same-day delivery in summer.