Wish I had ordered these years ago. For five years I've been washing my Dyson's filter and drying the darn thing with a hair dryer. What a pain trying to get any cloth filter to dry. Bought these and installed one and voila! Instant improved suction. Plus, the stinky smell of the old filter is gone. I'll be using these new filters and discarding them every half year or so. At this price it is cheaper than my washing and drying used filters. Also, they seem to seal better than my original Dyson filter.
These Dyson Pre Filters form a tighter fit inside the vacuum than the Dyson original filters which were always falling out. These form a nice tight seal. I found this resulted in an significant increase in the suction of the vacuum. I have since found out that these pre-filters should be changed out every six months. Thus this 6-pack makes for a convenient and cost effective solution to keeping your expensive Dyson in top working condition. Highly recommend this brand. Nicely packaged for easy storage for future filter changes. No need to clean them in my opinion. I simply change out and place a new one at this price range.
These replacement filters are great. I've only used one so far (and was actually surprised that it was a 6 pack, as the cost so low), but vacuum is performing just like it was with the stock filter. So, if your original filter makes your Dyson stanky because a member of your family vacuumed up something foul and evil-smelling whose odor couldn't be removed by washing the filter, just buy these replacements.