Materials used for air ducts must have a rigidity of 1,800H/10mm, fabrics -- 1,000H/10mm. The latter have three groups of rigidity: 1 - light, 2 - medium, 3 - heavy. Fire-resistance must correspond to the following certificates:

• the European EN 13501-1 (in other words, not facilitate the spread of fire, not emit smoke, and not create burning drops)
• the American UL723 on fabrics PMI, NMI, PMS, and PMSre; they have three levels of fire resistance: 1 -peak, 2 - enhanced, 3 - low.

Also, fabrics for air exchange and conditioning systems are distinguished for other beneficial properties they have:

• the use of "end" fibers, which practically assures they don't fall out;
• antistatic properties of the PMI/NMI materials which are achieved thanks to the inclusion of carbonic fibers;
• an antibacterial coating is applied on the inner (operating) side of the material and guarantees that no germs will spread.

Its high dustproof properties must be noted as well. If the facility that the system is providing air flow to does not have any hygienic requirements, it only will have to be performed once a year.

The tension rims used in the circular air ducts are also produced in various materials. Most frequently, an aluminum profile is used, heat-resistant plastic, or stainless steel.

Prihoda air ducts and air distributors do not fear washing. Models made from the NMF, NHF, and NLF fabrics may only be washed by hand, while the other kinds can be washed in a washing machine. The main thing is to wash them in precise accordance with the directions on the label.

Environment-friendliness

All wares presented in our catalog feature all the licenses for that type of product, hypoallergens, and do not extract harmful substances even while operating with heated air. Used in their production are Repreve trademark secondary recycling fibers. The PMSre fabric is also manufactured out of secondary raw materials obtained after plastic bottles are recycled.