Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Could you put dry ice in it, or would that damage the unit?
Document: That will help to cool things down more quickly. Don't use loose ice, though; if enough of it melts, the water will block the cooling vanes, which pretty much makes the cooler useless (and if the water level gets high enough, it could damage the cooler's motor).The cooler doesn't do anything about humidity, so if it's a humid day, or you put items with condensation in the cooler, you'll probably end up with a small amount of water in the bottom of the cooler when you unload it again later.
We eat out often. We had hopes of using the cooler for when we have left overs to take home but want to stop at a store or 5 and want to keep the food cold. Unfortunately, our car won't allow the cooler to run when the car is off (even in aux mode someone would have to be in the car with the fob). We could put ice in it but that just makes it an ordinary cooler. Nothing against the cooler. We just haven't been able to really use it yet so I gave it only 3 stars.
Bought this for my friends boat, thought it would be cool, to put drinks in and forgo buying ice every time... But the unit takes 4+ hours to get cool.. when its empty. After filling it with room temperature beverages, they were cooled off enough to drink 10 hours later.. but never got cold.
Placing a small towel in the cooler helps. Leaving one underneath the aforementioned cooling vanes when you unload the cooler overnight is good too; that way if any ice formed in there, it gets soaked up when it melts. Wiping it out nightly is definitely a good idea.Speaking of which, those cooling vanes have some slightly sharp edges. Be careful when wiping around the bottom of the vanes; they could scrape a knuckle pretty good.The unit cools with circulated air, so there has to be at least some room for air to circulate inside it.
Just got back froma 2 week trip and this unit worked great. Placed in the back area of our SUV and held drinks and sandwiches nicely, and cold. the only thing I had to do was buy an extender cord to plug the unit into the rear seat power supply. The unit was nice for the kids, for the drinks, and us as we did not have to buy ice every day. We did put a few paper towels in the bottom to pick-up some of the moisture that came from opening and closing.
At this size it is not very unwieldy. It seems very durable and because the vent is on the side it's easy to cover with an insulating cover without blocking the vent.Caveats: this doesn't cool warm food down, so you need to stock it with already-cold food, or add ice packs if you will be stocking it with room temperature food. If it was already nearly full of cold stuff we could stick a room temperature soda in and it would cool down. But with the way we travel, it is perfect for us, since we start from home or by shopping out of refrigerators so everything is already the right temperature.
Koolatron works very well. It is easy to use and would buy it again. It is quite and cools contents. We put a ice pack in to cool at beginning of trips. It is easy to carry into rooms and is sizable. We did a lot of research and have not experienced any issues so far.
I think the ice had already melted to water on the bottom of the cup by the time we put the cup of ice in the cooler, however. We put the cup of ice right next to the fan. We also put a cup of soda with ice in it on the opposite side of the cooler from the fan. The next morning most of this ice was melted, but the drink was still cold. We have yet to try whole solid food kept in it. But from the ice experiment, I am pretty certain that any food left in the cooler in the state in which we used it, would have been perfectly fine.
Why would you need to add ice to items that are already cold? A regular cooler with ice would be a better investment for most people, if you're a trucker or expect multiple day excursions... It might be worth the gamble.I noticed that some reviewers indicated that cooling efficiency is fantastic. Either all three of the units I've evaluated we're broken or these other reviewers loaded the cooler with ice or frozen items. Either way, not good. I've rated this unit two stars to not seem like a disgruntled reviewer but in actuality it would rate lower (I guess now I seem disgruntled!
This unit works very well. Put cold or frozen items and they stay that way! compact and quiet. nice looking,also.
Answer: yes