We had the Vicks one and locking it in place wasn't easy. We upgraded to the Allersearch one which was slightly more expensive but heaps easier to use. Plus it has a bigger water tank that keeps it going all night. I air the room out in the morning but find the night's sleep is soooo much better using one. Don't wake up clogged!

After five years of no cold medication due to pg and bfing and now back on that bandwagon I don't know what I'd do without mine. Great for DD too.