Show ZER AIDS CITY MOVEMENT ration may bo be broadly defined as asing asing 1 ing g the quality of the air in a er other Inclosure In Jn order to fit Jh h and comfortable livin Ih health alth authorities agree that air ruo be wholesome must be sub sub- lly free fres from front poisonous gases bad I smoke and dust It Il should be certain limits of temperature and and should hould be in motion li Uon may be obtained by remor- remor bodily from a room a umber of times per hour and relit re- re lit with fresh air from the out- out by replacing the air to a lim- lim tnt and ke keeping it thoroughly and ally in motion The former fonner can by means of exhaust while hile the latter Is possible by com corn use ue u e of exhaust and desk fans improvement effected In the air That ht is agitated ted and kept in has been clearly demonstrated by o of oC Dr Leonard Hill Hili iland land and of ot others who have found I fand of patients In air all kept In has increased as much as 34 pet per i However renewal of the air all is at certain Intervals else els edition will gradually date d deteriorate contaminated Twill again become con contaminated tic health authorities have advised the Quality c. c of air in schoolrooms irs ies assembly halls factories of- of r ys s dances dences etc is greatly Improved lIberal use of osculating oscillating rans wIll not only make the living ron eon on- on t much more comfortable but they also equalize the temperature h brooms rooms where It Is ordinarily to vary b by a a. nu number ber of degrees k a material aid to heating |