We spend an extraordinary amount of time in buildings that are extremely controlled environments, like this building here -- environments that have mechanical ventilation systems that include filtering, heating and air conditioning.
Ne do te shpenzojme nje kohe shum te madhe brenda ndertesave. te cila jan ekstremisht te kontrolluar nga ambienti sikurse kjo ndertesa ketu-- ambienti i cili ka nje ventillim mekanik te cilat e perfshijne filtrimin, nxemjen dhe ajrin e kondicjonuar.