Effect of quality and maintenance of the ventilation to the indoor air quality.

The aim of this study was to find out the indoor air quality in the real estates of the state and what was the effect of ventilation to the indoor air quality in these buildings.

A general primer pressure gradients against disease, weather, smoke.

This paper attempts to provide a general basis for implementing the principles of pressure differentials to aid in providing more user friendly air quality in buildings. This is a new technology application to be added to the commonly used air changes and filtering for cleaner air. The success story of smoke control can now be used as a major strategy against pollution and disease control in buildings. Stale bacteria-infiltrated air can also be contained to its spaces of origin and exhausted from its sources in the building.

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