Acclaimed as One of the Greatest Advances in Respiratory Protection in Years . · · the Proof • · . More and More Repeat Orders!
Amount οτ dust pass ing through AO Chem ically Treated Filter**
N e w AO R - 2 0 0 0 RESPIRATOR with Chemically Treated Filter
AO Chemically Treat F i l t e r e f f e c t ive I y stopped dust at ex posed surface**
Amount of dust pass ing through similar un treated filter* *
Dust leaked complete ly t h r o u g h t h i s
un
treated filter**
**Actual Laboratory Tests
It is easy to understand the popularity of this new AO Respirator because each of its advantages leads to another! Chemical treat ment of the filter provides far greater filter efficiency, hence a far smaller filter (only five inches approximately) is possible. There fore, a smaller filter container can be used which results in greatly superior wearer comfort and improved front and side vision.
Read these FEATURES!
There is no increase in low breathing resistance despite the vastly increased filtering efficiency. Filter is disposable and equipped with a gauze pre-filter which adds to filter life by barring larger particles of foreign matter—an economy feature. The new AO R-18 Plastic Face Shield, light in weight, durable and easy to attach is designed for use with the respirator and protects eyes and upper face against flying particles. Your AO Safety Representative can sup ply you with this great advance in respiratory protection.
• Filter does the job of similar untreated filters 8 times as large
Dramatic
• Protects against dusts 24 millionths of an inch in diameter
• Chemical treatment of this filter in creased its efficiency over 40 times • Protects against a combination of dusts—toxic, nuisance and pneumoconiosis-producing
*Approved by the Bureau of Mines.
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Division .SOUTHBRIDGE, MASSACHUSETTS · BRANCHES JIN PRINCIPAL CITIES
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