National Geographic : 1929 Mar
Grit Magnified is like Broken Glass THE most destructive type of dirt that lodges in your floor coverings is grit. Magnify it and you will see its sharp, cutting, glass-like edges. These grind and saw away at the rug fibres, or cut sharply through them. If this grit lodged on the sur face of the rug, ordinary cleaning would remove it and prevent this destructive action. But grit is heavy; sinks deep into the pile; packs into caked masses at the bottom of the rug. Suction alone does not remove it. Beatingis required, to shake it to the surface. There are two ways to beat out this dirt. One is by hand; the other is by means of The Hoover. In no other cleaner than The Hoover is an effective beating ac tion provided for the removal of dirt below the surface. In The Hoover "Positive Agitation"-a cleaning principle exclusive with products of The Hoover Com pany-vibrates the rug on a cush ion of air, dislodges the embed ded grit and flutters it to the surface. To the beating action of "Posi tive Agitation" are added sweep ing and suction. Because of the combination of beating, sweeping and suc tion, The Hoover is able to re move more dirtper minute than is possible with other cleaning methods. Any Hoover dealer will gladly give you a demonstration of "PositiveAgitation." Phone him. Three Hoover models, $59.50, $75 and $135. With dusting tools, $72, $87.50 and $150. Only $6.25 down. Floor Pol isher, $7.50. Allowance for old cleaners. THE HOOVER COMPANY, NORTH CANTON, OHIO Theoldestandlargest makerof electric cleaners - The Hoover isalso made in Canada,at Hamilton,Ont. %e HOOVER c S..SiT SWEEPS* As IT BEATS ON A CUSHION OF AIR CLEANS © 1929, The Hoover Company d.p.m. -DIRT PER MINUTE SThe accurate measure of electric cleaner efficiency is dirt per minute / PRESS OF JUDD & DETWEILER, INC. WASHINGTON. D. C.