. Electric railway journal . This Garland Ventilator Removes 33,100 cubic feet ofAir per hour at a Car Speedof 25 miles per hour Id Every scientific ventilator test made in the last 10 years hasproven that Garland ventilators are the most effective on the mar-ket. And where highest class equipment is selected Garland venti-lators are always specified. These tests prove that a fewer number of Garland ventilatorswill equal the performance of a greater number of other types. Orwith the same number Garland ventilation is far more car so equipped has wholesome air, no drafts, no dirt or
. Electric railway journal . This Garland Ventilator Removes 33,100 cubic feet ofAir per hour at a Car Speedof 25 miles per hour Id Every scientific ventilator test made in the last 10 years hasproven that Garland ventilators are the most effective on the mar-ket. And where highest class equipment is selected Garland venti-lators are always specified. These tests prove that a fewer number of Garland ventilatorswill equal the performance of a greater number of other types. Orwith the same number Garland ventilation is far more car so equipped has wholesome air, no drafts, no dirt or waterfalling on heads of passengers. Mr. T. H. Garland will gladly give his advice on your problemsbut ask him NOW or in July—dont wait until Fall. Garland Ventilators, Design B, on cars of TucsonRapid Transit Co. Efficiency Test of Design F Garland Ven-tilator made by Armour Institute. Velocity of aircurrent; speed oftrain: Milesper Hour Velocity of airthru ventilator,Feet per minute Volume of airthru feet perminute Volume of airthru ventilator,Cubic feet perhour 5 221 no 6600 10 433 216 12900 15 667 333 19900 20 886 443 26500 25 1105 552 33100 30 1330 665 39900 35 1551 775 46500 40 1773 886 53100 45 1990 995 59700 50 2111 1105 66300
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