Abstract: A personal isolation apparatus includes: a hood for covering a patient's body; a filter device connected to the hood having filters for removing SARS virus or other microorganisms as laden in the air streamflow as sucked from the hood by an exhaust fan; and at least an ultraviolet lamp formed between the hood and the filter device for killing or destroying the SARS virus or other microorganisms as laden in the air streamflow as sucked from the hood, thereby preventing infection of SARS and other diseases as infected by the microorganisms.

Abstract: An air-cleaning ecosystem apparatus includes: an ecosystem container having green plants, pollutant-absorbable plants and aromatic plants selectively planted in the ecosystem container; at least an illuminator installed in the ecosystem container; a blower having filters connected to the ecosystem container for delivering input air as primarily filtered into the ecosystem container; and an irrigation device for delivering water into the container for watering the plants; whereby upon light exposure by the illuminator, the green plants will conduct photosynthesis for absorbing carbon dioxide from the air and giving off oxygen into the air; the pollutant-absorbable plants will absorb some pollutants existing in the air; and the aromatic plants will release fragrant smell into the air, thereby outputting clean, fragrant air rich in oxygen beneficial for human and animal breathing for completing a gaseous cycle of ecosystem.