Here is what those families saw during the demonstration in their own homes:
We had the husband turn out the lights in the living room, and we then scraped the carpeting and furniture with a large brush. After that, we quickly turned on a small but very powerful handheld light (similar to one used in Hollywood to make movies). 
What the families saw was shocking; the whole room was full of clouds of dust and filth. It looked like patches of a fog of moving particles; many mothers and fathers asked their children to leave the room immediately. 
The odd thing is that in daylight and even at night when using regular light bulbs, these clouds are present as we walk across the carpeting, sit down on our furniture, and while our toddlers and children play on the carpeting. However, you can't actually see the clouds of dust, dirt, and filth unless you darken the room and turn on that powerful "Hollywood" light.              Therefore, individuals, families and children breathe this dirt, filth, and dust into their lungs, and doctors state that this is the number one cause of allergies and among children under the age of eight. Furthermore, the rate of those suffering from allergies has risen 60% in the last twenty years.
Why do I mention this terrible condition which is found in the home?           This is dirt, filth, and dust in our furniture, rugs, and carpeting because all bag and filter vacuums stop cleaning between seven and ten minutes.
But wait! You say that after you are done using your bag or filter vacuum that all of your furniture and carpeting looks great and clean.
Get ready to be shocked.                                                                     During every Rainbow in-home demonstration that we did in that fifteen year period, here is what we explain and demonstrate. Every bag and filter vacuum (which the families owned), has thousands of tiny holes in it. If it didn't, the bag in the vacuum would blow up when it is filled with the air that is being sucked in by the vacuum motor.                                                            When we turned on these vacuums in the family's darkened living rooms and shone the bright Hollywood light, we saw millions of small particles (some which were most certainly toxic) come out of the vacuum bag or the area around the filter. Within one minute, the whole living room was completely filled with the fog of dust, dirt, and filth.                                                     But wait...when we quickly turned on the lights in the room this fog totally disappeared. The family usually wanted to leave the room immediately after the lights were out and the bright Hollywood light exposed what was coming out of the vacuum bags and filters.                                                              However, when the lights were turned back on and the fog disappeared, they did not have any problem being in the room. I guess the old adage was wrong; what you can't see, can indeed hurt you.                                                  Isn't it amazing that anyone who did the weekly vacuuming in their homes never saw nor knew that they and their family members were being exposed to this toxic fog as they vacuumed in broad daylight?
Why is the fog toxic? The dirt and filth which is in a vacuum bag is stored in a family's closet for a week, a dark and enclosed area. There isn't any better place for bacteria to grow. Then the family member brings the vacuum out a week later, turns it on to "clean," and out comes this bacteria laden dust and dirt into the family's air.                                                                     These toxins remain in the air for up to twelve hours so that when other family members come home, they also are exposed to it. After ten to twelve hours, this dust, dirt, filth, and bacteria fall down onto our furniture, carpeting, and bedding.                                                                                                      During demonstrations, we found something else very frightening which was happening with every bag and filter vacuum that was being used in homes. They all stopped cleaning between ten and fifteen minutes.                            Why? Once all of those tiny particles of dust, dirt, and filth pass through the thousands of holes in the vacuum's bag or filter, the larger particles of dirt and filth are sucked toward the holes and they begin to plug up those holes in the vacuum bag or filter.                                                                            Once these holes are plugged, the vacuum loses what is called air flow. All bag and filter vacuums need the air to flow through the holes in order for there to be air flow.                                                                                                     You see, it is actually the air that is flowing through the holes in the bag and filters that pulls the dirt and filth off of the carpeting and furniture. It is not suction that accomplishes this task.                                                        You need air flow in order to clean. Have you ever noticed that after you have been cleaning for a short period of time that the vacuum cannot pick up a simple string or paper clip off of the carpeting?                                                    It is because the vacuum bag or filter is clogged with the larger particles and it has lost its air flow. However, if you place your hand at the bottom of the vacuum or put your hand over the open end of a vacuum hose, you still feel tremendous suction. What exactly does this mean?                                               It means that you are not cleaning or picking up anything. So, we ask ourselves how is it that our carpeting looks so nice and clean after we are done vacuuming? This feat is accomplished by what is called the beater bar (the roller with bristles) which spins around and is situated at the bottom of every vacuum. This beater bar spins rapidly, separates the carpet fiber, and allows the dirt and filth that can't be picked up to fall in between the carpet fibers. Then the carpet fibers close, the dirt disappears, and voila! Our home's carpeting looks clean. Remember that string or paper clip that the vacuum won't pick up? Items which are larger like these can't be "hidden" back in the carpeting!
Let's summarize what all bag and filter vacuums do during a ten minute period after they are turned on.
1. They force out millions of toxic particles of filth and bacteria into the air via the holes in the bag or filter. These particles remain in the air for up to twelve hours and then they fall down on to your furniture, carpeting, and bedding. During this period of time, the person who is cleaning and other family members are breathing this toxic bacteria into their lungs.
2. After the ten minute period of polluting the air ends, larger particles of filth and dirt begin to clog the holes of the bag or filter because they are to big to pass through the holes. The vacuum loses air flow and stops cleaning. We then find that the beater bar spins on the carpeting, separates the carpet fibers, and the dirt falls in between those fibers and is buried deep into our carpeting.
3.The Rainbow uses water instead of a bag or filter. Water traps 99.997% of all dirt, filth, dust mites and their fecal matter and traps it all in a swirling bath of water inside of the Rainbow. You see, once the filth is in the water, it can never re-enter into your indoor environment because the water traps it. Water does not have any holes like bags or filters do. So, nothing escapes from the Rainbow vacuum back into your air. The water can't get clogged, either, because again, water does not have any holes. So, the Rainbow vacuum never loses air flow. Therefore, when you vacuum with the Rainbow you are never polluting the air, and you actually clean 100% of the time that you are using it.
The Rainbow truly is the best available home cleaning system on the market. It actually does what vacuums only say they do...the Rainbow cleans! 
Complimentary in-door air quality demos in Kuala Lumpur/ Selangor, Malaysia on request from k.thiru@hotmail.com              016-3712762