Protech / Filtropur
We have had our Filtropur over 2 months. I have to tell you we are very happy the way it keeps our air in the home much cleaner. The bedroom machine is helping my husband and his snoring. It has completely made him sleep more comfortable. He is also on oxygen so it keeps the air very clean, you can definitely tell the difference. We also have one in our family room. We just rescued 2 dogs from a rescue facility. They were from a puppy mill. Unfortunately we are dealing with some accidents; they are both adult dogs and need to be trained. The air is staying fresh. You cannot tell we have added them to our family. I highly recommend it for anyone who has an illness such as my husband with COPD and emphysema.
It is easy to keep the filter clean also.