Filtration Resources

Austin Air Plus Air PurifierPleated Air Filter

Glossary of Terms:

Glossary 0-9,A

Glossary B-C

Glossary D-G

Glossary H-M

Glossary N-P

Glossary Q-Z




Custom Filter Configurator:

Fiberglass Disposable Air Filters Calculator

Polyester Disposable Air Filters Calculator

Pleated Air Filters Calculator

Odor Control Air Filters Calculator

Equipment Protection Filters Calculator


HEPA Filter Worksheet:

HEPA Filter Worksheet



HVAC System FAQ Guide

Top 10 HVAC FAQs

HVAC Air Filter FAQs

Humidifier FAQs

Submit Your Question(s)

All HVAC System FAQs



FREE Downloadable Guide - HVAC Air Filters & HVAC Systems FAQ - Danforth HVAC Experts Provide Answers To Your Most Frequently Asked Questions
FREE Download

Danforth Air Filtration & Air Purification
Air Filter & Air Purifier Resources Guide

by Richard Carrow (Danforth Air Filtration & Air Purification, Buffalo, NY)

Danforth Air Filtration & Air Purification and Danforth Indoor Air Quality Division work together to maintain Your HVAC / Air Filters / Air Cleaners / Air Purifiers, and coordinate required periodic testing and preventive maintenance on all types of air filtration & air purification systems in New York State


Glossary of Terms

The following Glossary of Air Filtration & Air Purification Terms is provided to help you understand the various Terms and Definitions used on this website.

0-9 A  B  C  D  E  F  G  H  I  J  K  L 
M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z 


Online Custom Air Filter Configuration Tools:

Danforth provides several online custom air filter configuraqtion tools to help you build and buy your Custom Air Filters for several specific applications:

If the custom air filter type that you require is not listed here, or if you need help configuring your custom filter correctly, please Call 1.866.581.4999.


HEPA Filter Worksheet

The HEPA Filter Worksheet is designed to help you gather information to order the correct HEPA, 95%DOP or ASHRAE grade air filter for your application. A Printable Version of the HEPA Filter Worksheet is also available.



Danforth’s HVAC Experts answer our most commonly asked questions on these FAQ pages as a service to Building Managers, Homeowners, and other HVAC Professionals.

If you are a Building Manager or Homeowner and you have an HVAC-related question for our experts, please submit it using the FAQ Form. When you submit a question we strive to e-mail you an answer within about 2 business days, and we may publish the most frequently asked questions on this website.

If you are an HVAC Professional and you need help locating the right equipment or parts e-mail or for immediate help CALL 1.866.581.4999 during normal business hours.

Top 10 HVAC System FAQs From Building Managers & Homeowners
FAQ Section 1 - General HVAC Furnace Air Filter Questions
FAQ Section 2 - Cleaning HVAC Air Filters
FAQ Section 3 - Air Filter Efficiency & Air Filter MERV Ratings
FAQ Section 4 - Air Filters For Classroom Unit Ventilators
FAQ Section 5 - Air Filters For Air Handlers, Air Cleaners, & Air Purifiers
FAQ Section 6 - Choosing Your Optimum Humidifier Model
FAQ Section 7 - Maintaining & Adjusting Your Humidifier
FAQ Section 8 - Finding Humidifier Parts & Accessories
ALL HVAC System FAQs - Get Printable PDF >>>

Ask A Danforth HVAC Expert - Submit Your HVAC System Question(s)

If you need immediate help from an HVAC Expert CALL 1.866.581.4999 during normal business hours (8:00am to 4:30pm Monday through Friday).


Danforth Air Filtration & Air Purification - Replacement Air Filters, HEGA Air Purifiers, & Associated Filters. NAFA Certified Specialist For Residential, Commercial, & Industrial HVAC And HEGA Air Purification

For Best Available Pricing & Delivery On Air Filters & Air Purifiers In New York State - Register Your Account & Buy Online
We Ship Air Filters, Air Cleaners, & Air Purifiers Anywhere In North America!

Danforth Air Filtration & Air Purification, New York
Call 1.866.581.4999

Clean Air For Residential, Commercial & Industrial Buildings
Clean Air For Residential, Commercial, & Industrial Buildings

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Retail And Wholesale Pricing On Std & Custom Air Filters

For Best Available
Discount & Delivery
Register Your Account

Buy Air Filters Online


On-Site Service
(In New York State)

Danforth also conducts HVAC system assessments and provides a detailed 3rd party report using our Aircuity™ HVAC monitoring and assessment equipment.
To Schedule A HEPA Filter On-Site Scan, Test, & Certification In Your Building
Contact Danforth’s National Environmental Balancing Bureau (NEBB) Certified Balancing Division
M-F, 8am to 4pm EST
Call: 716.829.1345


Contact Danforth Air Filtration & Air Purification
Danforth Air Filtration & Air Purification, Buffalo, NY
Buffalo, New York, USA
Call: 1.866.581.4999