It depends. An air-con room can bring the sniffles along with cold air. Fan rooms are generally better ventilated and have easily opened windows - which is often preferable in a small hut. Cheaper air-con rooms in particular can be grimy and stuffy, often with air-con that doesn't actually work very well or is very noisy. If you can't open the windows and there is a blackout, they can be downright unpleasant.
On the other hand, if you're travelling in the steamy heat of March to May and you haven't acclimatised or you find it difficult to function in hot weather, air-con can be invaluable and worth the extra couple of dollars. Another issue with fan rooms is that in leaving the windows open at night you open yourself to the risk of theft.
Please find below some of the more frequently asked questions (FAQ) people have about travelling to Laos. We've tried to answer all the most frequently asked questions, but if you have another query about Laos, please try our Travelfish messageboard.
Is it possible to rent rooms or dormitories for longer periods of time while travelling in Laos?
Should I take my own padlock for the door of my room while travelling in Laos?
What should I do if a bag is stolen from my room or dormitory while travelling in Laos?
What standard of accommodation can I expect for US$5 in Laos?
Why are there so few dormitories in Laos?
Why are there so few hostels in Laos?
Can I drink the tap water in Laos?
How can I avoid MSG in Laos?
How do I avoid peanuts in Laos?
I have a food allergy -- what should I do when travelling in Laos?
Is there good vegetarian food in Laos?
Is western food available in Laos?
How reliable is the public bus system?
Is it easy to hitch-hike in Laos?
Is it easy to rent a car or motorcycle in Laos?
Should I get a tourist minibus in Laos?
Which is better, speedboat or slow boat?
Are credit cards accepted in Laos?
Are there ATMs in Laos?
Can I send money out of Laos?
How can I have money sent to me in Laos?
Should I bring travellers cheques, credit/debit cards or cash to Laos?
Should I tip in Laos?