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How Street Sweepers Work
auto.howstuffworks.com/street-sweeper.htm
Street sweepers have been around for more than a century keeping our roads clean. Learn the history of street sweepers and what they're like today.
What is the emission certification standard?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/emission-certification-standard.htm
What is the emission certification standard? Find out what the emission certification standard is at HowStuffWorks.
5 Tips for Maintaining Healthy Lips
health.howstuffworks.com/skin-care/lip-care/tips/5-tips-for-maintaining-healthy-lips.htm
Maintaining healthy lips is important to your comfort. Visit HowStuffWorks to find 5 tops for maintaining healthy lips.
Anti-aging Lip Products
health.howstuffworks.com/skin-care/lip-care/tips/anti-aging-lip-products.htm
Anti-aging lip products are becoming more and more popular. Visit HowStuffWorks to learn all about anti-aging lip products.
Dandruff Causes and Treatments
health.howstuffworks.com/skin-care/scalp-care/problems/dandruff.htm
Dandruff can be a bothersome and embarrassing affliction. Visit HowStuffWorks to learn all about dandruff.
Face Soap 101
health.howstuffworks.com/skin-care/cleansing/products/face-soap.htm
Face soap differs from other types of soaps. Learn about how face soap works at HowStuffWorks.
Carboxytherapy Overview
health.howstuffworks.com/skin-care/beauty/skin-treatments/carboxytherapy.htm
Carboxytherapy is a popular skin treatment. Visit HowStuffWorks to learn all about Carboxytherapy.
5 Ways Petroleum Jelly Will Improve Your Skin
health.howstuffworks.com/skin-care/beauty/skin-treatments/5-ways-petroleum-jelly-improve-skin.htm
Petroleum jelly on skin is one beauty secret that can help improve skin in several ways. See the different uses for petroleum jelly on skin.
The Lymph System
health.howstuffworks.com/human-body/systems/lymphatic/lymph-system.htm
The lymph system is the body's drainage system. It is composed of a network of vessels and small structures called lymph nodes. Explore the lymph system.
Can your sweat be different colors?
health.howstuffworks.com/skin-care/problems/medical/chromhidrosis.htm
Can your sweat be different colors? It can if you have chromhidrosis. Read about chromhidrosis and what causes colored sweat.