Product review (1 stars): The Magic Lung is the Worst Idea Ever!
If you buy any Vent-a-hood with this terrible Magic Lung system you will be shocked the first time you have to clean it. You're probably used to removing a mesh or screen to clean your hood, right? Maybe even disposing of one and replacing it with a clean one? Well, forget all that because you are going to be dealing with the most difficult household task you can possibly imagine.

First, you'll remove a large metal shield that will be covered with grease/oil on the inside and drip it over to your sink so you can soak at least part of it in ammonia and hot water. You'll discover then that you should have covered all your counters, floor and cooktop with towels or something.

Next, you'll have to undo slimy "suitcase latches" on either side of this really heavy metal box that goes over the blower wheels. It will be drenched in grease/oil even if you, like me, try never to fry or saute food in the house. It will not fit in a double sink so now you can carry it dripping to your laundry room and put it in a big/deep sink and run gallons of boiling water. Pour in the ammonia and let it soak while you proceed to:

Step three: the impossible removal of the blower wheels using a 1/8" hex wrench threaded through one of the fins of the wheels. It will not turn, so slip across your tile to the garage and get a heavy duty pair of pliers and try to use that for leverage. No luck. Try again. No luck. Try again. Fail. Now, you'll have to figure out how to clean the thing in place while you lean over your cooktop (and I needed a stepladder), bumping your head on the hood surround and trying to work paper towels on a butter knife through the fins which are concave and curved away from you and very closely spaced together while it is dripping ammonia on you and everything else... Forget it! After 45 mins you'll give up and leave some of the grease there. Go back and get the heavy box and realize that all the ammonia did was turn the grease white, so now you have to clean it with paper towels and more ammonia, gassing yourself in the process, cutting your fingers on the raw metal edges, running to get small utensils to work your towels into the little crevices and completely messing up your laundry area and the sink.

Rinse this metal box and drag it dripping to the kitchen where you have to hoist it up and over the blower wheels and somehow manage to hold it there while you use one hand to find, connect and close each suitcase latch. Whew! Now get the shield out of the kitchen sink and clean it with paper towels and put it on, trying to make the screw holes match up so you can screw it down.

I have built 6 custom homes and totally remodeled 3 others and have never, ever hated an appliance or other product as much as I detest this one. Yes, it appears to have a strong updraft (carrying all those little oil beads into the ghastly magic lung) and yes it is a little quieter than a jet engine, and YES it was very expensive, but it is a horrible, horrible torture device to clean and maintain. You should do it every few months but you will hate it so much you'll be lucky to get it done once a year, making the job even worse.

Maybe restaurant kitchens can hire people do things like this (strong, tall people) but the average homeowner should not have to completely disassemble (or try to disassemble) gigantic parts just to clean their stove hood. This should not be a residential product.

Buy any magic lung Vent-a-hood at your own risk. You've been warned.