What's New

Indoor Environmental Systems Inc.: Fresh-Air Intake System

October 1, 2007
/ Print / Reprints /
/ Text Size+

A fresh-air intake system (FAIS) brings fresh, filtered outside air into the home and minimizes outside air filtration from the crawlspace and other leaks in the building. It provides filtered outside air directly to the air handler for conditioning and mixing with the house air. It helps stabilize negative pressures and back-drafting created by exhaust fans such as the dryer, stove, and bathroom exhaust fans. The FAIS uses three filters: a carbon pre-filter, a reusable electrostatic filter (which can be cleaned in the dishwasher), and a HEPA filter. A filter return grille is attached to the exterior of the building and an air duct is connected to the return side of the HVAC system. A damper can be set to regulate the amount of outside air entering the home and an automatic backflow valve keeps house air from being expelled when the central air system is not in use. The cfm intake can be adjusted to the desired level.

Indoor Environmental Systems Inc., 924 W. Chatham St., Cary, NC 27511; 919-234-9802; 919-462-0624 (fax); ies@nc.rr.com; www.indoorenviron.com

eProduct 188

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

You must login or register in order to post a comment.



Image Galleries

2014 MCAA Annual Convention

Scenes from the 2014 MCAA Annual Convention in Scottsdale, Ariz.


NEWSmakers: Julian Scadden

Training is an ongoing process. Julian will discuss how you can generate maximum return on time and energy invested training by following a three part process. Listen to this podcast to get expert tips on training, tracking and follow up. 

More Podcasts


NEWS 04-21-14 cover

2014 April 21

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe


Which statement on service calls best applies to your business?
View Results Poll Archive


2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research


Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.


Magazine image
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.


facebook icontwitter iconyoutube iconLinkedIn i con