Your source for information about air filtraton - from the basic principles of filtration and the different types of filtration devices to information about tesing, spcialized applications, and the role of filtration in Indoor Air Quality.

NAFA Members: Before placing your order - if you wish to purchase 10 or more copies of the NAFA Guide to Air Filtration, please contact NAFA Staff nafa@nafahq.org for discounted pricing. If you are a NAFA member, or an employee of a NAFA member, be sure you are getting the NAFA member price on your purchase. If you signed up recently, and your company is a NAFA member, you will need to wait until your record is associated with your company listing. At this time, we only ship to the United States, Canada and Mexico. An additional shipping fee will be requested for outside the U.S.