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2. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

3. Central vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Central_vacuum_cleaner

   If two motorized blowers are set up in parallel, both motors work independently. Each of them takes its airflow from the same canister but has its own air inlet and air outlet. This configuration generates more airflow volume (calculated in CFM or m³/h). Airflow indicates the amount of air vacuumed per minute or per hour with a fully opened hose.

4. Keep Your Tools Secure and Organized With These Indispensable ...

   www.aol.com/lifestyle/7-best-tool-bags-increased...

   These tool bags allow you to have your commonly used tools close at hand, and make it easy to transport them from room to room, or to a separate job site. Keep Your Tools Secure and Organized With ...

5. Toolbox - Wikipedia

   en.wikipedia.org/wiki/Toolbox

   Tool Bag: Tool bags are often made of heavy canvas and leather. Some tool bags have a hinged steel frame around the opening. This allows the bag to stay open when in use. Many tool bags have pockets on the inside and or outside. They usually include handles and sometimes shoulder straps. Tool bags often have a firm, reinforced bottom panel.

6. Dust collector - Wikipedia

   en.wikipedia.org/wiki/Dust_collector

   Systems for fine removal may only contain a single filtration system (such as a filter bag or cartridge). However, most units utilize a primary and secondary separation/filtration system. In many cases the heat or moisture content of dust can negatively affect the filter media of a baghouse or cartridge dust collector.

7. Testing, adjusting, balancing - Wikipedia

   en.wikipedia.org/wiki/Testing,_adjusting,_balancing

   In heating, ventilation, and air conditioning (HVAC), testing, adjusting and balancing (TAB) are the three major steps used to achieve proper operation of heating, ventilation, and air conditioning systems. TAB usually refers to commercial building construction and the specialized contractors who employ personnel that perform this service.

8. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality .

9. HVAC control system - Wikipedia

   en.wikipedia.org/wiki/HVAC_control_system

   However, when designing HVAC systems, many engineers design it for a specific setting and/or purpose. When engineers are designing an HVAC system, they try their best to make it compact while still being able to perform at the highest level and experiment with different ways to make HVAC systems as efficient as possible.