A NEW IDEA OF INDOOR AIR POLLUTANTS DISPOSING EQUIPMENT

Indoor air contaminants may be grouped into four categories: microbial contaminants; respirable particles; gaseous contaminants, and vaporous contaminants. Conventional filters like HEPA filters can only be useful for bioaerosols and respirable particulate. Absorbers such as activated adsorbed can be useful for almost all gases and vaporous contaminant, but eventually they will lose efficiency. Photocatlysis can remove all VOCs and bioeffluent, but not very useful for gases contaminant such as ammonia. This present paper points out indoor air contaminant and features of the three kinds of equipment, and points out that for outdoor air and recirculated air different removal equipment should be used.

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