What about other solutions? Other solutions can be UV sanitizers, Chemical sanitizers, and hand cleaning/washing.
UV sanitizers are probably the best solution for the remaining three, but they also come with their faults… UV stands for ultraviolet, which is a form of electromagnetic radiation with a wavelength from 10nm (with a corresponding frequency around 30PHz) to 400 nm (750THz), shorter than that of visible light, but longer than X-rays. Short-wave ultraviolet light (UVC) radiation sterilizes surfaces with which it comes into contact, but it also damages DNA. UV sanitizers destroy viruses and kill bacteria by using their lights to emit UV rays, targeting proteins and genetic material (DNA and RNA). "They speed up cross-linking of this genetic material, which reduces the ability of the genetic material to participate in healthy replication," Karen Dobos, Ph.D., professor in the department of microbiology, immunology, and pathology at Colorado State University, tells Health. Besides that, UV sanitizers use UV lamps (also called "germicidal lamps") and the efficiency of UV sanitizers is the same as the efficiency of the UV lamps used. So UV sanitizers can be less effective if UV lamps used are not strong enough (and since they are simple to produce with cheap UV lamps, they often prove to be not enough effective). Another point to consider when it comes to personal UV sanitizers is that the energy their lights emit wanes over time. "As it decays, it becomes even less effective for its target, and I don't know how a person could tell how these bulbs are decaying," professor Dobos says. "I'm sure there's a 'replace by' date, but most of us only replace a light bulb when it goes completely out. This is well beyond the effective time for a UV source.
So, yes for the UV sanitizers, but with caution about what you are buying/getting.
Chemical solutions. These are to be discussed… Their efficiency is pretty high. Simplicity to use as well. But, they are used with water, and they leave CPAP equipment wet after use. Now, before we analyze chemical sanitizers more, we should mention that some solutions are more complex and use the fan that dries the equipment after sanitizing. Chemical sanitizers are quite simple solutions, just put the CPAP equipment into a container with water, add a chemical agent that will do the sanitizing process, and leave it like that for a while (usually around 10-15min); some models use a type of a water pump instead of a container and push the water with a sanitizing agent through the CPAP equipment. Although they are simple and require almost no space (if you only use a sanitizing agent you can clean your CPAP in a sink), do keep in mind that after use you must make sure that your CPAP equipment is thoroughly dried (or else we loop back to the beginning of the story to the part about germs and hot and humid places).
Manual washing and sanitizing (vinegar). When manually cleaning and sanitizing your CPAP equipment most often as a sanitizing agent (besides mild soap) you will use vinegar. This method, although the cheapest, easily available, and simple, is the least efficient and most time-consuming one. That aside, the problems that come with this method are more-less the same as with chemical cleaning, and that is residue water after the process.