Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Do you have to oil the motor now and then?
Document: first time using it i noticed a terrible burning smell. smelt like burnt oil and motor. took a while to trace out that the smell was coming from the fan. its a great fan in that it moves a great deal of air. however the smell DURING the first use caused a headache in me...scared to think what my poor dog must have inhaled!
I think I must have a defective fan, as I was using it in my daughter's room for a few nights. Each morning there was a strong motor oil type smell that filled her room. I had to stop using it, as the smell was quite strong. I have never experienced this with a fan before and I used a similar fan to this (Lasko High Velocity Floor Fan) at my sister-in-laws at night for my daughters without any trouble.
Couldn't ask for more air but the smell is awful. I too hoped it was just a break in odor but I have had it for several months and it still smells like burning oil. I returned a cheaper model for the same reason and hoped the Lasko would be different. Not.
This fan pushes a lot of air, with three speed settings it works great. I bought this for hot days and nights outside and circulates air on most of the deck. A little noisy for inside but only because of the speed. It had a little oil smell when I first got it but it went away after a couple of uses. Setup is a snap.
However, I am not sure if people will enjoy the burning oil smell that comes with it. I have purchased many other Lasko products over the years (heaters and fans), and they are all still running great. This is the first issue I have had with a Lasko product.UPDATE: Amazon made good with the defective fan. They cross-shipped me a new fan (free of charge), before I even returned the original fan.
The fan works as advertised. It moves a LOT of air. It does sound like an airplane idling on the runway, but that is to be expected for the amount of air it moves. I was not looking for a quiet fan, but one that actually could circulate a lot of air. My issue with this fan, however, is the terrible smell it gives off. The fan smells like burning oil, and has just become worse over the 10 days that I have been running the fan.
As many of the other reviews have stated, this fan is powerful, sturdy, and stable. It is noisy, but with a fan I think you have to choose either power or peace. However, what I am supremely disappointed by is the motor having only lasted a bit over a year!
I had made the mistake and had a mess to clean out of it. Yes, I would buy this item again although its not the best fan I had not real issues other than quality. The blades are thinner and the motor isn't as strong. With this fan your paying for the name rather than the fan.
I have this fan and a slightly older model which is virtually identical. It works quite well as a fan and can push out a prodigious amount of air. Just recently, the older one seemed to develop a problem and the blades no longer turned. When I examined it carefully, I noticed that the fan blade assembly had become detached from the fan motor.
I have owned the Aloha Breeze for nearly 7 years with no issues and still runs as good as the day I bought it. The Aloha Breeze has a stronger 150-180 motor vs Lasko's 130 watt motor and thicker blades. Motor doesn't get hot with the Aloha Breeze like the Lasko motor does as well.
Answer: No, it has a sealed motor.