Ngeqela lethu le-R&D leenjineli ezikrelekrele, siye sazisa iidesika zokuma zombane ezithe cwaka  < 40 dB. Ezi desika zokuma ziyilwe ngocoselelo zifumana uthotho lovavanyo ukuqinisekisa ulwaneliseko lwakho kunye nokuba sempilweni ngokubanzi. Kwilebhu ekhethekileyo - igumbi elithuleyo, iinjineli zethu zivavanya iidesika zokuma kunye nomthwalo we-265Ibs, indawo yethu yokusebenzela yayihlala ithule kakhulu kwaye izinzile, kunye nengxolo <40 dB.

Sesiphi isandi esiyi-40 dB? Abantu abaninzi abawazi kakuhle amanqanaba esandi kunye nokuba idecibel ivakala kangakanani na. Makhe sijonge kwizandi eziqhelekileyo ukuze siqonde ngcono amanqanaba engxolo akhuselekileyo kunye nokuba ingxola kangakanani na idecibel.

I-0 dB sesona sandi sithambileyo indlebe yomntu inokusiva-into ephantse ingavakali, njengokuwa kwegqabi.
10 dB: Ukuphefumla
20 dB: Amagqabi arhashazayo
30 dB: Bebeza
40 dB: I-Refeigerator
50 dB: Imvula ephakathi
60 dB: Incoko
70 dB: Izithuthi zesiXeko seMoto
80 dB: Ilori
90 dB: Isixhobo sokomisa iinwele
100 dB: Helikopta
110 dB: Trombone
120 dB: Intsimbi yamapolisa
130 dB: Injini yeJet
140 dB: Iifireworks