Grainger KnowHow® delivers equipment guides, business operations tips and safety information, explores industry trends and introduces people who get the job done.

Equipment

How to Choose Label Printer Supplies

Equipment

Understanding DEF and Fleet Maintenance

Safety

Safety Management

5 Strategies to Reduce Workplace Noise

Equipment

Building Maintenance

Manage the Incandescent Light Bulb Ban

EDITOR'S PICKS

Equipment

What is MERV Rating?

Learn about air filter MERV ratings and use our handy chart to understand which rating is appropriate for your air quality needs and HVAC system.

5/4/23

EQUIPMENT

5 HVAC Emergencies and How to Avoid Them

8/19/25

EQUIPMENT

HVAC Winter Prep & Maintenance

9/28/21

EQUIPMENT

What to Do When Water Meets Your HVAC System

7/31/24

OPERATIONS

4 Key Questions About Zoned HVAC

9/15/23

What KnowHow Are You Looking For?

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SAFETY & HEALTH
OPERATIONS
EQUIPMENT
TRENDS
PEOPLE

Safety Management

How to Avoid 7 Common Electrical Hazards at Work

Workers are often unaware of the potential electrical hazards in their work environment, putting them at risk for electrocution. Learn how to avoid 7 common electrical hazards at work.

09/05/25

Sustainability

Recycling Symbols and What They Mean

This article explains the many recycling symbols for plastic, paper and glass, and offers general guidelines on how to recycle these materials.

09/04/25

PPE in the Workplace

Types of Respiratory Protection Equipment

There are lots of different respirators to pick from. Check out this guide to the types of respiratory equipment and which will work for your workplace.

08/22/25

Building Maintenance

5 Tips for Safely Storing Gasoline and Diesel Fuel

Follow these tips to help ensure the safe handling and storage of gasoline and diesel fuel.

09/05/25

Emergency and Disaster Preparedness

Mold vs. Mildew: What’s the Difference?

Learn how to spot the differences in appearance and health effects of mold vs. mildew to help prevent more significant issues from taking root.

09/05/25

Building Maintenance

Managing the Incandescent Light Bulb Ban in Your Facility

Learn more about the recent changes in lighting efficiency standards and what they mean for your facility.

08/25/25

Equipment

Floor Marking Guide: Tape, Shapes and OSHA Best Practices

Find out how using floor marking systems can help facilities organize work areas, address OSHA requirements and create safer, more efficient operations.

09/17/25

Equipment

Why More Workers Are Wearing Cooling Vests in the Heat

Learn why cooling vests are becoming more popular in construction, landscaping, warehouses, fast food and other industries.

09/16/25

Equipment

Types of Hammers and Their Uses

What are the best hammers you can have? That depends on what you are using them for. Learn about the different types of hammers and their uses.

09/16/25

Industry Trends Articles

Video: Inventory Management Pros on Trends in the Field

Industry professionals in inventory management and procurement discuss trends they are seeing in their field during the 2024 Grainger Show in Orlando, Florida.

07/10/24

Industry Trends Articles

EH&S Professionals Discuss Workplace Safety Trends

Industry professionals in environmental health & safety discuss trends they are seeing in workplace safety during the 2024 Grainger Show in Orlando, Florida.

07/01/24

Industry Trends Articles

Manufacturing KnowHow, Products and Services You Need

This page includes articles on topics relevant to the manufacturing industry, and introduces the many services and product categories Grainger offers to serve manufacturing operations.

06/18/24

Case Studies

Case Study: Carnival Cruise Lines Finds Smoother Sailing with Grainger

Carnival Cruise Lines worked with Grainger Consulting Service to dramatically improve digital purchasing and completely remake a storeroom at one of its ports.

07/18/25

Case Studies

Case Study: Grainger Supports Cubs’ Warehouse Consolidation

See how Grainger helped the Cubs cut retrieval time, stay organized and bring warehouse ops closer to Wrigley for greater efficiency.

05/19/25

Inspiration

How It's Done: Teddy Bears

One homemade teddy bear, crafted by an entrepreneur for his son in 1981, grew directly into the company known as Vermont Teddy Bear. Based in Burlington, the company manufactures about 200,000 bears annually and guarantees them for life. Cathy Carlisle, the company’s director of manufacturing, shares more here about the process of manufacturing a teddy bear.

01/03/25

Popular KnowHow For You

PERPAREDNESS

Mold vs. Mildew: What's the Difference?

Mold and mildew are both fungi caused by excess moisture, but they differ in appearance, health risks and how they spread. Learn how to identify, prevent and treat mold and mildew to help protect your facility and the people in it.

9/5/25

SAFETY

How Much Do You Really Know About PPE?

Take this interactive, 10-question quiz to see just how much you know about common PPE topics.

5/2/24

VIDEO

PEOPLE

Our Product Specialists Answer Common Questions

In these videos, Grainger Technical Product Specialists share answers to common questions.

5/24/24