Checked for some reviews and comments in Russian sites after your post.
There are, mainly, two manufacturers. Here are some pictures from people who wrote comments, containing detailed photos of the parts:
DINAMIKA from Novosibirsk -
https://otzovik.com/review_11234640.html
and LOTOS from Omsk -
https://otzovik.com/review_1021084.html
Hard to say which one is better and the real one. May be both do good, despite there`s a guy claiming that the initial Frolov device, back in the times of the Soviet union, was much bigger, complicated and contained more parts. What happened that led to simplification - I couldn`t find out, neither if it matters.
Generally, the reviews are from good to excellent. Folks report different things: got rid from cough, bronchitis, better sleep, additional energy, reducing adipose tissue, normalization of blood pressure, improved pancreatic function and other. From what I can judge, these are real comments from real people. Only a few reported no effect; no one - complications.
Downsides:
1. Must be done religiously
2. Bad plastic quality. The tube, especially, cracks down quickly which makes the device unusable. Some say one can write to the manufacturer and it will send a new tube for free. Not sure it works that way. But in Russia, one can get the whole product for several bucks.
3. Must be washed very, very well after each use.
I`m going next week to a shop here that sells such things, I guess they must have it, or at least they`d know where to purchase it. I don`t want to spend 70 bucks (plus some shipping) for a handful of cheap plastic parts, but definitely I intend to try it. Will let you know after.
Thanks for the research Vinny.
I'm glad to know you can find these cheaper in Russia or Bulgaria. I'm assuming the websites are in Bulgaria, if not in Russia?
One reviewer said he bought a unit at a pharmacy around 10 years ago for 800 rubles, which converted today, is around $9, and this was to replace his old device. I think that cheap plastic notwithstanding, it is a good deal.
I found this site selling the device at CAD$55, although I don't know when it will have it available again:
An original portable apparatus designed for breathing exercises. Breathe Right, Feel Good.
www.avivahealth.com
Still, even at Amazon's relatively high price of $70, it still worth it if the buyer actually uses it to get better.
I sure could use one, although currently I'm using various essential oils in various ways, specifically steam inhalation over 15 minutes, and via diffuser at night while I sleep, and using suppositories. This is to dispel mucus and provide expectorant relief to my lower respiratory bronchitis. All these, coupled with postural drainage exercises twice a day, to drain out lung fluids. I hope that as each day passes, the lung fluids (pleural effusion) will keep getting less until they are no more.
But that is only part of it.
The oxygen I get from breathing is reduced a lot. It would be normal for me to see spO2 level from 96-98%. But with my bronchitis, the level is at 93-95%, which causes me to tire out easily simply walking or doing some light work. I believe the reduced oxygen supply is why I currently suffer from symptoms of ALS, Parkinson's, and Meniere's.
So, in addition to the essential oil therapy, I am using my carbogen machine twice daily for 1 hour sessions each time, with carbogen at 10%. The session is done each time I finish my lungs of fluids, as that is when the lungs are most receptive to taking in air. Since starting this two days ago, I have found myself in better shape. My sleep is better as my hiccups are not disturbing my sleep, and with improved CO2 levels, my platelets are able to carry serotonin to the lungs effectively for serotonin to be deactivated at the lungs. Otherwise, there would be so much free serotonin that it would cause me to lose sleep.
I imagine the Frolov device would be as effective as my carbogen machine, which costs me $1000 and which is no longer sold, and would be just as helpful.
As I continue with my therapy, in the following week I would be adding the use of a homeopathic remedy, if the essential oil therapy has not resolved my bronchitis issue. I don't know how long my therapy as described would last, but I will keep doing it until I see my bronchitis, ALS, Parkinson's, and Meniere's symptoms all go away.
I believe I am on the right path. If and when I am fully healed, I'd be interested in knowing if I would heal just as well using the cheaper Frolov device.
As the power of carbon dioxide and its role in our metabolic energy production and health has always been talked about, but never as much realized in practice - at least in the West. But the testimonials of those using the Frolov devices in Russia, which are positive and encouraging, gives us hope that simple solution of even cheap plastic can outperform what our medical respiratory experts in hospitals, funded by "research," can and cannot, will and will not do.