
Chiponji chosefera, chomwe chimadziwikanso kuti siponji ya mesh kapena chiponji chophulika. Chiponji chosefera cha polyurethane chimapangidwa ndi thovu lofewa lotseguka la cell kudzera mu kukonza ma mesh. Kukonza ma mesh kumachotsa chigoba choyambirira cha nkhope kapena filimu ya pakhoma pakati pa maukonde a thovu, ndikupeza kapangidwe ka ma mesh akuluakulu.
Kuchuluka kwa ma porosity a siponji yosefera ndi 97%, ndipo mpweya wake umatha kupumira bwino, kufewa bwino, komanso mphamvu zambiri zamakanika.
| ade | Kuchulukana | Chiwerengero cha maselo | Kukula kwa mbole | Miyeso Yokulirapo |
| (kg/m3) | (maselo/cm) | (ma pores/inchi) | ||
| 10PPI | 22 - 26 | 3~4 | 5~15 | 2000 x 1000 x 800mm |
| 20PPI | 22 - 26 | 5~6 | 15~25 | 2000 x 1000 x 800mm |
| 30PPI | 22 - 26 | 7~9 | 25~35 | 2000 x 1000 x 800mm |
| 40PPI | 22 - 26 | 10~13 | 35~45 | 2000 x 1000 x 800mm |
| 60PPI | 22 - 26 | 15~18 | 55~65 | 2000 x 1000 x 800mm |
Amagwiritsidwa ntchito m'mafakitale osiyanasiyana monga njinga zamoto, zosefera zamagalimoto, zida zosefera, malo osungiramo zinthu m'madzi, zophimba mpweya, zoziziritsa kukhosi, ma cushion okhala ndi mipando yopumira bwino, matiresi, zotsukira mpweya zoyatsidwa ndi mpweya, zotsukira za ceramic, ndi zina zotero. Palinso chotsukira cha polyester chosagwira mafuta. Chotsukira cha slow rebound filter, ndi zina zotero.