Got mine at home depot to use in the basement. My house is 102 years old and the basement was dug out in 1936 according to the last member of the family that we bought it from, this basement would give off a musty smell in the summer so this DH fixed that. Mine has two settings it runs either for 2 or 4 hours and then stays off for 2 or 4 hours its been running all the time for over a year and still going strong. Its a Samsung I think. I paid 179.00 on closeout