Material

Fabric is the central component of our product, so Prihoda places great emphasis on ensuring that only the highest quality materials are used. Every material we offer has been through a long development process in order to achieve the highest value for our customers as possible. The PMI/NMI fabrics provide all of the built in benefits listed below at no additional cost.

Here you can download material certificates

List of most important benefits of our fabrics

High tear strength

Our basic PMS/NMS/PMI/NMI fabrics offer optimum strength and durability. In the texture it is 1800 N/10mm, and 1000 N/10mm in the weave. Because of these parameters, it is nearly impossible that the material will come apart or fray under normal operating conditions.

High fire resistence

The PMI/NMI/PMS/NMS  fabrics are certified according to EN 13501-1 with an excellent result. They achieve B-s1,d0 classification meaning they meet a specified flame spread / smoke development index, and do not produce burning droplets. NHE fabrics in fact meet class A requirements. PMI/NMI/PLI/NLI/PMS fabrics meet UL723/NFPA 90A 25/50 index (UL file number R125183).

Very low fiber shedding

Due to the use of endless fibres, ALL of our fabrics can be used in cleanrooms up to ISO Class 4. Independent laboratory tests demonstrate that there is practically no particle shedding from our material during operation.

Antistatic effect

Woven carbon fiber in PMI/NMI materials eliminate electrostatic discharge from the diffuser. (Note: Grounding accessories must be used to fully dissipate electrostatic discharge).

Antimicrobial effect

We utilize a special treatment which kills various types of bacteria and fungi that come in contact with our fabric. Independent testing has proven even after TEN washes there was no reduction in the efficacy of the treatment. This essentially means a permanent effect due to the low maintenance requirements (see the following point).

Easy to maintain

Our fabrics made of endless fibers are not prone to clogging from impurities in the airflow. This air is distributed through the holes, and the textile diffusers remain nearly clean inside (in a normal environment with EU3/G3/MERV 5 filtration ) so the diffusers do not require maintenance other than outer dusting. Washing is usually only needed due to sanitary or aesthetic reasons.

Durable Appearance

Thanks to our endless fiber technology, the appearance of the fabric does not change over time, or with multiple washing cycles, unlike materials made of staple fibres. Our PMI/NMI/PMS/NMS materials retain their aesthetics after many maintenance cycles.

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How to Choose a Suitable Fabric

1/ What level of fire resistance do you need?

Our fabrics have 3 levels of fire resistance.

Peak fire resistance: Specified using the letter “E”, as in “Excellent” means an entirely non combustible material. Within this class, we only use fabrics constructed from fibreglass with a polyurethane coating. These are however non permeable and more fragile than polyester fabrics of medium weight. This fabric (NHE) is in class A2-s1,d0 as per EN 13501-1.

Increased fire resistance: Specified using the letter “I”, as in “Increased” means practically non combustible and very low smoke production. These materials (PMI, PMIre, NMI, NMR, PMS, NMS, NLI, PLI) meet the requirements for use in the majority of spaces & building codes (UL 723, NFPA 90a, UL2518, ULC) and are by far our most popular fabrics.

Low fire resistance: Specified using the letter “S”, as “standard” or “F”, as in “foil” or T as translucent are less fire resistant. They can be used in rooms where an increased fire resistance is not required. These fabrics (NLW, NMT, NLS, PLS) are in classes C,D,E as per EN 13501-1. The foil (NMF, polyetheylene plastic) has no fire resistance.

2/  What are your demands for rigidity and cleaning ability?

Fabrics are divided in 3 categories by weight.

Light (L): Diffusers made from these materials only require .10 in wg of static pressure to achieve proper inflation. However, they are light weight, have lower durability and increased risk of tearing if used improperly. All our light weight materials can be machine washed with the exception of NLF.

Medium (M): These fabrics have a mass between 5 and 10 oz/yd2. They have the highest rigidity and anti-tear resistance. The minimum static pressure required for inflation is .20 in wg. Our medium weight materials are our most popular sellers as they are commercial grade and can be machine washed.

Heavy (H): Our heavy fabric (NHE) has a polyurethane coating which makes it non permeable. It must be washed or sprayed/hosed down by hand and requires a minimum .25 in wg for inflation. It is a good option for industrial, dirty applications.

3/ Do you need a permeable fabric?

Permeable material prevents condensation occuring on the duct when cooling below dew point.

4/ Do you want totally a sustainable product? We can offer Prihoda recycled.

Our standard Prihoda Fabric ducts and diffusers offer many environmentally friendly & IAQ benefits, however we now offer a 100% recycled material (PMSre). Working with a global textile manufacturer, Unifi, we use Repreve recycled fibers from recycled post-consumer plastic bottles in this product. Prihoda Recycled looks, feels and functions no different than our non recycled UL fabrics, but it leaves a smaller footprint. This product can contribute to LEED v4 Materials & Resources due to its post consumer origin, 3rd party Environmental Product Declaration, and LCA.

5/ What color do you want?

Most of our materials are available in our 9 stock colors detailed below (shades may vary). Custom / special colors are available at an additional cost and longer delivery time.

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Shadecard PMS, PMI, NMS, NMI

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Shadecard PLS, NLS

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Shadecard NMSre

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Shadecard PMSre

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Shadecard NHE

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Shadecard NLF

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Shadecard NMR

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