Exceptionally long service life

Prihoda fabric ducts are not a short-term solution. Diffusers made from good quality materials will last for 10 to 20 years or longer, depending on the choice of fabric and installation methods.

All Prihoda diffusers and ducts are made of high-quality, temperature- and shrink-resistant synthetic materials. The particular fabric specified in your order is confirmed in shipping documents and printed on the label sewn into each piece.

Cleaning and maintenance of fabric ducts is easy. Ducts and diffusers made of permeable materials (Classic, Premium, and Recycled) can be washed normally in an industrial or commercial washing machine. Impermeable fabrics (Prihoda Light) can be machine washed on a gentle or delicate cycle. Specialty materials, such as Prihoda Plastic, Prihoda Glass, and Prihoda Foil, must be hand washed only. If the duct or diffuser has hold-open accessories, these solid elements can be removed easily before washing process. Induction surface dirt on the outside of the duct or diffuser can be vacuumed off easily, so in many environments washing might not even be necessary.

See Materials for a full description of all Prihoda fabric options.


The warranty is deemed to start on the day of sale (shipping date) and shall last for a period specified under “Warranty Period” below. For warranty to be valid all installation instructions must be strictly followed in addition to regular maintenance of the supply air units and filters. Supply air must be filtered to at least EU3 (MERV5), and the ducts must maintain original operating conditions in respect to design static pressure and air flow stated in the submittal or order confirmation. Any deviation from the original design intent that may have an adverse effect on the material or accessories may void the warranty. Furthermore, any deviation from Prihoda’s recommendations will void the warranty unless explicit written consent is given by an authorized representative directly employed by Prihoda.

The ducts shall be installed in strict accordance with Prihoda’s installation instructions and allowed to hang freely without touching the structure or surrounding environment. The warranty will be null and void if exposed to open flame, dripping liquids, harsh chemicals, temperatures above Prihoda’s recommendation, or sharp edges/objects. If installed in a natatorium or pool room, the pool must be properly balanced with normal amounts of chlorine/chloramines in the environment. Non-fabric articles and accessories are covered for a period of 12 months. Washing must be done in strict accordance with Prihoda’s maintenance instructions and must not exceed 50 washings.

The warranty does not cover consequential loss or damages, labor, shipping, rental equipment, tools required, natural disasters, war, or acts of God. The warranty may not be executed in the form of a cash payment; it is available only in the form of credit for repair or replacement, which is at the discretion of Prihoda. A claim must be executed by informing an authorized Prihoda representative at which time a full written claim and photo documentation is requested. If deemed necessary, a Prihoda representative will be allowed to visit the installation for inspection.

Warranty Period

Premium and Classic Materials with Non-Tensioned Suspension Systems: 10-Year Non-Prorated Warranty.

Premium and Classic Materials with Internal Rings and End-Cap Tensioning: 15-Year Warranty, prorated from year 11-15 (50% in the eleventh year and reduced by 10% each year thereafter).

Premium and Classic Materials with Helix or Internal Rings and Intermittent Full Tensioning: 20-Year Warranty, prorated from year 11-20 (50% in the eleventh year and reduced by 5% each year thereafter).

Effective April 11, 2020