Portable ACs actually cool your room by removing heat and humidity, while evaporative coolers only work in dry climates by adding moisture to the air.
What You’ll Need
Here’s what you need to pick the right cooler for your space.
- Tape measure
- Hygrometer (humidity meter)
- Window kit (for portable ACs)
Steps
- Check your climate. Grab a hygrometer and check your local humidity first. Evaporative coolers only work when humidity stays under 60%. Portable ACs handle any climate.
- Measure your room. Measure your room with a tape measure. Multiply length by width to get square footage. Portable ACs handle larger spaces and extreme heat much better.
- Evaluate venting options. Check for a nearby window first. Portable ACs need an exhaust hose to vent hot air outside. Evaporative coolers need no venting at all.
- Compare energy costs. Check the wattage on each unit’s label. Evaporative coolers pull up to 75% less power than portable ACs. That savings adds up fast on your electric bill.
- Consider maintenance. Factor in daily upkeep before you buy. Swamp coolers need water refills and pad cleaning every few days. Portable ACs only need occasional filter rinsing.
Pro Tips
Tip
Drop ice cubes into the evaporative cooler’s water tank. That gives you an extra temperature drop during peak afternoon heat. It only works in dry climates though.
Caution
Never run an evaporative cooler in a humid room. It will make the air feel sticky and clammy. You will feel worse, not cooler.
Fact-Check Checklist
- Humidity threshold for swamp coolers: Under 60% [VERIFIED]
- Energy savings of evaporative coolers: Up to 75% [NEEDS HUMAN CHECK]
- Portable AC requires exhaust hose [VERIFIED]
- Evaporative cooler maintenance: Daily water refills [NEEDS HUMAN CHECK]
- Ice addition tip for swamp coolers [VERIFIED]