86 
A Womans Smile 
Should Reveal Glossy Teeth 
All Stateiiiints Approved by High Dental Authorities 
It is Film That 
Clouds Them 
That slimy film which you 
feel on your teeth is the cause 
of most tooth troubles. 
It clings to the teeth, enters 
crevices and stays. The tooth 
brush does not end it. The 
ordinary tooth paste does not 
dissolve it. So it continues to 
mar the beauty and to wreck 
the teeth. 
That film is what discolors 
—not the teeth. It is the 
basis of tartar. It holds food 
substance which ferments and 
forms acid. It holds the acid 
in contact with the teeth to 
cause decay. 
Millions of germs breed in 
it. They, with tartar, are the 
chief cause of pyorrhea. 
That film is the teeth’s great 
enemy. So dental science has 
for years sought a way to end 
it. Now an efficient film com¬ 
batant has been found. It has 
been proved by careful tests. 
And now leading dentists all 
over America are urging its 
daily use. 
Supplied to All 
Who Ask 
For home use this method 
is embodied in a dentifrice 
called Pepsodent. And to 
show its effects a 10-Day 
Tube is sent to anyone who 
asks. This is to urge that you 
get it. 
Pepsodent is based on pep¬ 
sin, the digestant of albumin. 
The film is albuminous mat¬ 
ter. The object of Pepsodent 
is to dissolve it, then to day 
by day combat it. 
This method long seemed 
impossible. Pepsin must be 
activated, and the usual 
agent is an acid harmful to 
the teeth. But science has 
discovered a harmless activat¬ 
ing method. And now active 
pepsin can be daily used to 
combat this viscous film. 
Able authorities have made 
convincing clinical and labo¬ 
ratory tests. Now everyone 
is asked to make a home test 
and see what Pepsodent does. 
Compare the results with 
the methods you are using. 
See the change in ten days. 
Then decide for yourself if 
this new method is best for 
you and yours. Cut out the 
coupon now. 
The New-Day Dentifrice 
Now advised by leading dentists everywhere 
297 
Ten-Day Tube Free 
THE PEPSODENT COMPANY, 
Dept. 963, 1104 S. Wabash Ave., 
Chicago, 111. 
Mail 10-Day Tube of Pepsodent to 
Name . 
Address . 
I See What It Does 
I Send this coupon for the 
' 10-Day Tube. Note how 
I clean the teeth feel after 
I using. Mark the absence 
I of the slimy film. See how 
^ teeth whiten as the fixed 
I film disappears. These ef- 
I fects are most important- 
I prove them. 
House & 
jr 
Cr a r a e 
1 
) 
Tank type of. 
vacuum cleaner, 
with duplex pump. 
Courtesy Regina Co. 
Making a Clean Sweep 
(Continued from page 57) 
threads adhere for a long time to the 
bristles and often return again to the 
carpet. 
Third: Using air with beating and 
sweeping. These sweepers have a large 
brush in a large nozzle and the brushes 
are spirall)^ wound in two rows with a 
simple belt connection to the motor. 
These machines are generally adjusted 
so that the nozzle is about above 
the carpet. The bristles extend enough 
below the nozzle so that the bristles 
push away the carpet as the air draws 
it up. This gives the shaking motion 
at the same time the bristles, coming 
down at an angle on the carpet, beat 
it and passing through the nap comb 
and sweep it automatically. The bris¬ 
tles comb the nap and the air, passing 
through, cleans the carpet 
and the imbedded dirt is 
loosened by the shaking. 
The surface litter and hair 
is swept up and it cleans 
efficiently by applying all 
the laws of cleaning at the 
same time. 
Of course, with the 
I cleaner come tools for alti¬ 
tude cleaning, for blowing 
out dust from books, 
moldings, upholstery tuft- 
ings, etc., etc. The extra 
tools are absolutely neces¬ 
sary and it is well to re¬ 
member that the price is 
generally given you with¬ 
out the extra $7 to $10 
being added. Tools are 
made of aluminum steel 
and fibre, which means that they are 
durable and will withstand much wear 
and tear. 
If you should own the best vacuum 
cleaner in the world and take no care of 
it, it would be as if you had none. Every 
bit of machinery that was ever or will 
ever be made needs care. Any mechan¬ 
ism “acts up” if neglected. It is true, 
that the vacuum cleaner needs very lit¬ 
tle care, probably oiling once a month 
and the removal of the dust after every 
cleaning operation. The oiling is easy 
to understand, but the reason for re¬ 
moving the dust after every operation 
is; that, if the dust bags clog up, the 
egress of the air is impeded, and there¬ 
fore the action of the motor is impeded 
and the fan’s speed is diminished, caus¬ 
ing a decrease in velocity 
and air supply which is 
what makes the cleaner 
more useful than a broom. 
Do not be fooled by big 
talk and glib printed mat¬ 
ter about high vacuum 
power, and long air and 
water columns. What is 
needed for a good clean¬ 
er is air displacement 
at a sufficiently concen¬ 
trated point or surface to 
maintain a high air veloc¬ 
ity. A vacuum cleaner 
might show in a technical 
test a tremendous vacuum 
and when used on the car¬ 
pet the nozzle be so con¬ 
structed as to mitigate the 
(Continued on page 88) 
Vertical mo¬ 
tor type 
A vacuum cleaner of the tank type. The attachments displayed 
before it show the various types of tools necessary for the complete 
use of the cleaner. Courtesy of the Duntley Pneumatic Cleaner Co. 
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