Ever since I started using Swift LT about a month ago, this has become my best mask. It had solved all except 3 problems for me. It has significant rainout, the belt in the back slips up for me, and it sometimes has intermittent whistling noises most likely from the out port orifices. Of course we are all different with different sensitivities to noise and head shape and room humidity/temperature, so some people may not have any of the above. This one describes how I fixed the rain out. Even a drop of water entering my nose at night will ruin the sleep for me for an hour
Do you need all that much humidity you use currently? We may be pushing in too much humidity. The first step is to set your heated humidifier to the lowest required for your comfort. Some of you can just use pass over humidification (heater turned off), or no humidifier at all. BTW, even the lowest humidity setting of a particular HH may be too high for some, but they still need humidification. This was the case for me with my M-series Auto integrated HH. I did a simple fix for reducing the amount of humidification in any given settings as described in this post:viewtopic/t34848/Mseries-integrated-HH-Electronics.html#p298553
Some people use some type of hose insulation, which will reduce rain out; but my fix below works for me without hose insulation. Note that there can also be some condensation from the out breath; for those who keep the hose over their head may have rain out even without any humidifier at all, if the room temperature is pretty low, especially if they use low cpap pressures.
This is how I fixed the rain out. I put in a cotton wick inside the nasal pillow. The figures below show the construction of the wick and how it is used.
One inch wide bias tape used in sewing (somewhat thick woven cotton cloth) about 5" long is used as the wicking medium. A little shorter length of about 17 gauge nylon string (used in tennis rackets) is used as a stiffener, to make it easy to keep the wick stay towards the outer edges of the pillow.
The cloth tape is foldef over into two or three layers, and sewn along the length. Now the nylon string is pushed into the inside. I tied both ends with a piece of string to prevent the nylon stiffener from slipping out. That it it. I always boil any material I use for wicking, to get rid of any sizing or other coatings, and to make the first night wicking better. Now it is time to insert this into the Swift LT cushion.
The wick above is a little bit short to cover the entire perimeter of the cushion. I keep the open ends at the top, since the condensed water will be at the bottom, and it is usually from here that the water enters the nostrils.
When I wash the cushions every morning, I take out the wick and wash it and dry it till the evening.