**4.7. Other applications of non-woven textiles in the indoor environment**

**Non-woven walls:** Non-woven textiles are used for building of flexible freestanding construc‐ tions for partition of open indoor spaces. Special polyethylene Tyvek© is applied for the production of the non-woven walls, which includes 10–15% recyclable content [43]. Nonwoven flexible walls influence the ILQ and ISQ, as they can sculpt the light of the indoor environment and dampen the sound.

**Non-woven curtains**: Similar to floor coverings, non-woven textiles are used in the indoor environment either as the outer fabric or as the reinforcing lining of blinds and curtains. When visible, and in contact with the indoor air, non-woven textiles can affect the metrics of the indoor environmental quality in a similar way as the wallcoverings. Non-woven curtains reduce sound from the outdoor environment and affect the Indoor Light Quality (ILQ). Synthetic materials dominate over natural fibers as they are easy to maintain and have good resistance to UV rays. Like non-woven upholstery textiles, curtains and screens accumulate odors and particulate matter and need regular cleaning.
