In here I present an item that I do not even have an idea how much ask for it...
For collections it is rather priceless, I decided to list it for 300£. You will even not find a photo of this box in internet.

Was trying to find some information for years but found  just few documents with stock list of 2 hospitals and that's all.
No photos, no information, my Australian customer mentioned about his friend in Germany has one, and that was only one photo I saw.
Production started in 1988 and finished fast as system collapsed so do not know how many produced. Heard just about few.

This type of device:

  • Fully encloses the child inside a rigid or semi-rigid box
  • Uses filtered airflow (often positive pressure) instead of a mask seal
  • Is intended for infants too young to safely wear respirators
  • Typically includes view windows, glove ports, and filter units

But one day ebay user fahrenheit1947 
told me something more ;)
 https://www.ebay.co.uk/usr/fahrenheit1947?ul_noapp=true
You need to check his listings;)

,,Before 1985, no protective measures were made in Poland for infants and newborns, it is known that then only the purchase of those in the USSR was taken into account where these funds were already produced. When in the second half of the 1980s SON-1u came into production it was far too late for fast mass production and it is difficult to say whether this was a reason to produce a negligible amount or perhaps these incubators were more predicted for protecting the infantry of the state's rulers. Nevertheless, it is a very rare fantasist, personally only once in a dozen or so years I had a doublet of this incubator.
The incubator itself is equipped with an electric supply currently known as the PAPR system, powered by R20 (D-cell) batteries, which is an obligatory equipment in infant protection because such small lungs are not yet able to suck in air through the filter (formerly in time 2) World War I used manual pumps).
SON-1u was adapted to use a classic filter-absorber with a threaded joint of 40 mm diameter known from military masks SzM-41M, i.e. elephants. Made of double-sided rubber fabric like coveralls with a bow. Tetra nappies, a bottle and a teat were included in the set, and a PVC package for decontamination in the outer pocket. It is possible that other things that were not in the copies that came into my hands. In addition, of course, the pipe and the filter-absorber.''

Here some interesting facts and technical datas:

1. The SON-1U container is designed to protect the body and respiratory tract of infants from: 

poisonous substances,

biological agents,

radioactive substances

contained in ambient air in the area (region) of occurrence of chemical, biological and radioactive contamination as a result of the use of weapons of mass destruction (bmr) or industrial catastrophes. The SON-1U container provides protection for an infant for about 6 hours, thus allowing to leave the contamination area (evacuation) or to reach the nearest protection building (shelter).

2) The SON-1U container can be used as intended (point 1) in the following conditions:

a) oxygen content in atmospheric air - above 17% vol;

b) ambient temperatures from 253 to 303 K, i.e. from -20C to + 30C);

c) relative humidity of the air - up to 90%;

d) normal atmospheric pressure.



. Construction and basic data

4. The SON-1U container (photo 2) consists of:

a rectangular container proper from the skimmed fabric (2);

metal folding frame (1);

air purification and supply unit (3);

the battery box (4).

5. The proper container (photo 2) has:

a) from above

a flap (5) with an eye glass of organic glass (6) in which the exhalation valve (7) and a rubber plug (8) are mounted; used for sealing the flap (5) with the container properly,

zip fastened with an apron made of rubber fabric;

b) in the right long side (photo 3)

glove hole (3) with a rubber glove attached to it (1) protected from the outside with a removable cover (2),

threaded socket (6) of the supply fan set (photo 4) used to connect the gas filter type BSS-Mo4u (B) with the connecting pipe (7);

c) in the left long side (photo 4)

two glove holes (2) with glued rubber gloves (1) protected from the outside with removable covers (3),

a tight rubber duct (4) together with an electric wire (5) for connecting the motor power supply of the fan assembly (7) from the supply batteries in the container (6);

d) outdoors (photo 3)

at the bottom of the SON-1U container, along its long sides four catches (4) for connecting the SON-1U container with the chassis of the "Protazy" type pram (according to BN-82 / 4961-09 and drawing No. 176.00.00.00),

a belt (9) and carrying handles (5) for carrying the container by one or two persons;

e) inside (photo 4)

a white fabric lining (8), a plastic foam mattress trimmed with fabric and fastening belts (9) protecting the infant from injuries during transport,

additional equipment: one bottle for liquid food, five diapers, one set of disinfectant bst (placed in a pocket outside the container).

6) Metal folding frame (photo No. 5).

The frame of the SON-1JJ container consists of:

frame of the frame (1) - also serving as a support frame,

four telescopes (2),

connecting elements (3).

7. The air purification and supply unit consists of:

gas filter absorber type BSS - Mo4u (photo 3 item (8)),

corrugated connecting pipe (photo 3 ppz,. (7)) with threaded ends, used to connect the absorber to the fan assembly connector,

a fan assembly with an electric motor (photo 4 item (7)),

Exhalation valve (photo No. 2 item (7)) placed in the glass (proper container flap (photo 2 item, (6)).

Purification and supply unit, after connecting with the proper source of electric energy (batteries), the air is purged inside the closed container proper, cleaned by the BSS-Mo4 gas filter - creating a positive pressure in the container in relation to the external atmosphere (which manifests itself by expanding the walls of the fabric of the skimmed container) . This overpressure counteracts the entry of contaminated air inside the container, guaranteeing the proper protection of the baby.

A properly functioning exhalation valve ensures that the necessary overpressure in the container is maintained and regulates the flow of purified air required by the container from the point of view of the physiological needs of the child.


1-frame; 2-container proper, 3-air purifying unit 4-battery container, 5-flap, 6-glass window, 7-exhaust valve, 8-rubber stopper



8. The tube-shaped battery container has a sticker specifying the type of batteries that can be used during operation. The container should contain, for example, 6 batteries type R-20 (initial value 9V), arranged in accordance with the drawings shown on the sticker. If the battery is incorrectly placed, the fan will not work properly. The electrical properties of the battery should comply with the PN-75 / T-89200/09 standard.



Chapter III. Operating organization.

9. The SON-1U container is serviceable, i.e. it can be used as intended (see point 1 under conditions (see point 2) if:

a) is complete (see "S0N-1U container");

b) was properly assembled for use;

c) the air purification and supply unit is working properly (see item 7);

d) does not have damaged or requiring replacement (due to, for example, overdue) elements;

e) the condition of electric batteries (sources of electric energy) guaranteeing correct operation of the purifying and supply unit in a continuous manner within a period of 6 hours;

f) the expected date of conducting the technical condition check (technical service) does not expire earlier than after 30 days from the date of receipt of the container by the user.

10. It is unacceptable to use a container fit for use contrary to its purpose (see item 1) and in conditions other than those specified in point 2 as well as:

making any modifications by the user;

unjustified starting of the purifying and supply unit (unpacking the canister, unscrewing its nut and plug, turning on the fan motor, etc.);

storage by the user in conditions other than those specified in point 29.

11. WARNING!

THE HEALTH THREAT OR LIFE PROTECTED IN A SON-10 CONTAINER A BABY MAY BE CAUSED BY:

use of the SON-1U container, which is inoperable in operation;

carrying out activities prohibited in point 10;

priming or moistening of the BSS-Mo4u canister during the use of SON-1U;

deformation, surface damage (perforation) of fabric-gloves, absorber, connecting pipe, sight glass; removing the rubber plug; damage, covering of the exhalation valve; opening a container in the atmosphere of contaminated air.

12. During use of the SON-1U container as intended, it should be protected against the effects of heavy rain, intense wind, (using an additional cover, eg foil).



Chapter IV. Preparation and checking before use

13. Preparation of the SON-1U container for use consists of:

a) unpacking and removing the container from a cardboard package and a plastic bag;

b) unfolding the metal frame (by grasping the SON-1U container with the metal rectangular frame rim and strong shaking of the container to extend the telescopes and surprise latches (optionally additional manual extension (photo No. 6;);

c) opening the zip and flap of the proper container;

d) the tension of the container coating proper by means of metal spacers, disposed within the container, along both of its short sides;

e) removing from the container additional equipment, packed gas filter BSS-Mo4u, connecting pipe;

f) assembling the BSS-Mo4u absorber with the connecting pipe (after unscrewing the nut located on it) and screwing the pipe stub at the other end of the connecting pipe into the socket of the fan assembly;

g) loading the battery compartment with efficient and suitable batteries;

h) cleaning the container of dirt (dust, talc, etc.).

14. Checking the S0N-1U container before use is based on:

a) checking the completeness and correctness of assembly (frame, strut, purge and supply unit, type, amount and arrangement of the battery in the container for the supply batteries, etc.);

b) checking the operation of the purge and supply unit (after removing the rubber plug from the BSS-Mo4u absorber and connecting the fan motor power cord plug to the socket in the battery container and after connecting the damper with a zipper with the proper container) - see item 7,

c) checking the condition of the elements in accordance with the relevant entries of authorized OC bodies in the "Container book SON-1U" from the point of view of their expiry date and the date of technical inspection (technical service) - according to the data contained in point 9 d -9 f.

15. Each time, after completing the SON-1U container check operation, immediately disconnect the power cord of the fan motor from the receptacle of the battery container and disconnect the absorber and close it with a rubber stopper and a metal nut. The operation time of the purifying and supply unit should be noted in the appropriate box "SON-1U container" and confirmed with your own signature.