Frequently Asked Questions and Technical Library

Technical Library
Waco is a storehouse of detailed technical knowledge concerning the filtration industry.  Explore below some of the more significant tables and reference documents focused on filters.

  1. Air Filter Application Guide    Click here
  2. ASHRAE Test Comparison    Click here
  3. Filter Selection Guide    Click here
  4. Filtration Glossary    Click here
  5. Filtration Separation Spectrum    Click here
  6. MERV Definitions    Click here
  7. Understanding Filtration Costs    Click here

If your questions are not answered by the FAQ below, call us at 610-630-4800 or click here to send us an email with your questions. You can also click on the LiverPerson logo at the bottom of this page and engage in a chat with Waco filtration experts
  1. What are the unique advantages of UVC emitters for filtration purposes?
    UVC removes mold and mildew

  1. Why does Waco refer to the Total Cost of Filtration in its marketing materials?   
    Simply looking at the unit cost of a filter overlooks many of the costs that comprise the filtration process including carrying cost of inventory, obsolescence and leakage, impact on energy consumption, frequency of replacement, amount of labor to replace filters, etc. Waco analysts consider all these factors in addition to unit cost to recommend the most cost effective filtration solution to its customers.

  1. What are the unique advantages of Reverse Osmosis (RO) filters?
    Unlike other filtration systems, RO devices can remove dissolved particulates from water. A good example is the ability to remove salt from salt water.

  1. What makes an air filter "green," i.e., supportive of environmental quality?                 Many different factors make a filter "green" but some of the major considerations are reducing the cost of energy in filtration systems, greater holding capability of contaminants, disposability of the filter after use, and longer life.

  1. Does Waco assume the cost of carrying filter inventory for its customers?
    Yes, for its National Account customers, Waco either holds inventory for the customer in its own warehouses or stores the unbought but allocated inventory at the customer's site.

  1. Does Waco assume the cost of shipping for its customers?
    No, Waco adds the cost of shipping to the price it offers its customers.

  1. What is the importance of having warehouses located across the country?
    With strategically located warehouses, Waco can be closer to its customers and deliver filters in a more timely fashion. This is particularly important for customers who like to manage their MRO supplies on a JIT basis.

  1. Would my company qualify for Waco's National Accounts program?
    Your company would qualify if it had a filtration spend per year exceeding $2,000,000, had multiple sites across the country, and was embarking in a MRO or filter vendor consolidation program.

  1. What is MERV and how does it apply to air filtration?
    MERV is the acronym for Minimum Efficiency Reporting Value which is a number from 1 to 16 that is measures the efficiency of an air filter. The higher the MERV, the more efficient the air filter is at removing particles from the air. At the bottom of the efficiency spectrum a filter may have a MERV of 4 or 5. At the top end, a MERV 14 filter is typically the filter for critical areas of a hospital. The higher MERV rating indicates the filter is better at preventing transfer of bacteria and infectious diseases. Higher MERV filters are also capable of removing higher quantities of small particles. It should be noted however that a higher MERV causes a greater drop in air pressure because filter media becomes denser as efficiency increases.

  1. What is LEED and how does it apply to Waco filters?
    LEED is the acronym for Leadership in Energy and Environmental Design, the program sponsored by the US Green Building Council to make buildings more environmentally sustainable. LEED is a points based certification program to objectively determine whether a building is contributing to environmental improvement. LEED certified buildings in general are expected to utilize resources assets more efficiently than other buildings. Once a building (either new or existing) has achieved LEED certification it will provide healthier work and living environments, which contributes to higher productivity and improved employee health and comfort.

If your questions have not been answered by the FAQ above, call us at 610-630-4800 or click here to send us an email with your questions.