J.H. Moores Memorial Natatorium the oldest continually operated municipal pool in the United States. The Natatorium is an ellipsoidal, above-ground structure constructed of reinforced concrete with a rubble-stone facade. The entrance is on one end through two pairs of metal doors, flanked by plaques which read "DESIGN SUPERVISED BY W. BINTZ, CITY ENGINEER, SWIMMING POOL DESIGNS, 1922" on one side and "J.H. MOORES MEMORIAL NATATORIUM. A.D. 1922" on the other. Decorative parapets project on each side of the entrance. Original window openings have been filled in. A balustrade of reinforced concrete runs along the top, with lamp posts at regular intervals. The interior contains
Indoor bioaerosol devices to air ventilation system to inlet filtered outdoor air into indoor environment; 4) reducing/removing contaminant sources (i.e., indoor organic waste). As in the U.S., due to the increase in tuberculosis in the mid-1980s, indoor air treatment has developed substantially during the past two decades. Current or developing indoor air purification technologies include filtration, aerosol ultraviolet irradiation, electrostatic precipitation, unipolar ion emission, and photocatalytic oxidation. Indoor bioaerosol Indoor bioaerosol is bioaerosol in an indoor environment. Bioaerosols are natural or artificial particles of biological (microbial, plant, or animal) origin suspended in the air. These particles are also referred to as organic