In damp conditions a dehumidifier, a device optimized for gathering water out of air, more efficient in terms of amp-hour per pint than an air conditioner, can get you significant amounts of water. But air is [not] contaminate free. Dirt, dust, bacteria, algae, even protozoans, can travel by air and end up in the water dripping from the the condenser coils.

A dehumidifier, or AC unit, can collect water for you out of thin air. But condensate from AC units is notorious for supporting slime, mold, and crud so you are still going to have to filter it.

I guess that if you can run an AC unit, or dehumidifier, and have use of them for other reasons, and you happen to be shy of water, then you get water as a bonus.

Left out a word and it confused the message. Better now.