These are a Vacuum and Filtration Unit. Majestic and Defender. They are high end products sold by filter Queen and backed up by their lifetime warranty. If used with their filters they promise highest filtration for tiny particles, allergens, odor, and even bacterial protection. That is achieved through multiple layers of particle and carbon filtration. I also have enough filters to last you over two years. Currently they are sold for 1600 and 800 with 50% and 33% discounts. I paid a little more a few years back but who is counting. Willing to part with them for 600 and 200 respectively or 1000 for both at once. I think that is fair to everyone. Let me know what you think. Here is their website for more info: www.filterqueencanada.com