Recopilación: Without hose

Your best choice is an evaporative cooler with a large water tank and adjustable fan speed. Look for models that let you add ice. This boosts cooling performance on the hottest days. If you have no window at all, these units are a real lifesaver, because a compressor AC physically cannot work without venting.

A regular compressor-based portable AC always needs a hose to vent hot air outside, that's just physics. Hoseless models are evaporative coolers: they don't push heat outdoors, but instead humidify and cool the air inside the room. Choose them when you can't set up a vent, they do a great job at local cooling and freshness without any extra hassle.

No, it's not hype, it's just a different technology. If the description mentions no hose and no compressor, it's an evaporative cooler, and it really does blow noticeably cooler air. The hype (and letdown) starts when cheap $20 models call themselves "ACs" but are just fans with a water sprayer and no real evaporative pad. Read reviews and check for a real evaporative cartridge before buying.