Swamp cooler or ac unit for drying cannabis in hot: arid climate

the swamp cooler will have limited cooling effect, but will probably help with the RH a bit. You may need both.. or AC + humidifier if you want a 9-10 day dry. a swamp cooler is basically a humidifier.. it's blowing air over a wick that absorbs water.. as that water evaporates, it cools. Evaporation of water has a slight cooling effect - stronger in lower RH and less so in high RH. This is the same thing as a humidifier, but the humidifier will be better at controlling a targetted RH. So, if cost is no concern, AC + humidifier will definitely be the best way to go. Scrubby isn't wrong, but if you store weed for a 1 year or more, it will make a difference toward the tail end of that time period. It will hold up better if you are a bit anal about the drying process. Over hthe winter i had 68-70F and 60%. It took 9 days for buds trimed and pruned off branches to dry on mesh racks. LEaving the leaves attached for a dry trim and buds attached to stems can help slow down the process if it's going to be warmer or dryer. cooler is probably better, but not turning the furnace under 68F in winter, lol. 9 days is plenty long enough. in the past even 5-7 was fine, but i did notice it jsut doesn't hold up as well long-term. not an issue for many growers if the weed never makes it longer than 3-6 months

If there's a possibility, go for it. If you can control temperature, humidity will be easier to manage. Warm air carries much more humidity than cold air. So lowering the temperature, you probably won't need a dehumidifier. Keep humidity in check with temperature; for example, a room at 25°C has 50% humidity, if you raise the temperature to 28°C, humidity goes up to 65%, and if you lower it to 20°C, humidity drops to 40%. When acquiring equipment, do tests to see what your ideal temperature is. Good luck, cheers!