1. The respirable fraction of Earth-based analogs have serious limitations. 2. Human exposure to respirable asbestos is a very serious concern, 3. Venturi scrubbers achieve very high collection efficiencies for respirable dust. 4. A second type protects users by providing clean, respirable air from another source. 5. The gaseous oxide of azote ( the laughing gas ) is perfectly respirable when pure. 6. The emission and accumulation of respirable suspended particulates are the major pollution threats in Hong Kong. 7. The respirable fraction is the proportion of particles in the air that can reach the alveolar region. 8. It points out that 2, 000 deaths in Hong Kong last year were related to respirable suspended particulates. 9. To measure the respirable fraction of particles in air, a pre-collector is used with a sampling filter. 10. Nuisance, inhalable and respirable dust fractions are all sampled using a constant volumetric pump for a specific sampling period.
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