What is a Negative Air Machine?
A Negative Air Machine is used to filter air and keep contaminated air from entering other parts of the building during a mold remediation or cleaning/restoration project. Negative Air Pressure helps capture and contain airborne contaminates like dirt, dust, smoke, fumes, fungus and mold.
Did you know the Industry standard is to change the air 6 times per hour?
To create a negative pressure environment there has to be more air leaving the room than the amount that enters and the Negative Air Unit must be inside the containment with ductwork to exhaust the filtered air.
How to Calculate how many Negative Air Machines you need:
Calculate the Cubic Square Footage of the room, house or building. Multiply the total square footage by the height of the ceiling. (Length * Width * Height)
Ex. House: 2,679 sqft * Ceiling Height: 10Ft = 26,790 cubic feet.
Divide the Cubic Square Footage by the Negative Air Machine’s CFM to determin
e how long it takes to change the air 1 time.
Ex. House Cubic Feet: 26,790 / 2,000 CFM = 13.40 minutes to change the air.
Calculate how many times the air will be changed in an hour. Divide 60 mins by the time it takes the machine to change the air 1 time.
Ex. 60 mins / 13.40 minutes to change the air = 4.48 times the air will be changed.
Determine how many machines you need by dividing the industry standard of 4 by how many times your machine changes the air.
Ex. 6/4.48 = 1.35 machines needed. So you would need at least 2 machines to meet the standard requirement to change the air 6 times per hour.
Future Environmental Designs created a Negative Air App that will calculate this for you if you have your measurements. You can check it out here.
Are you looking for abatement containment film?
Americover is the smart source for polyethylene and plastic sheeting. We are the creators of innovative products like BearAcade® Abatement Containment Film. A 6 mil self-adhesive film designed to prevent damage during mold and asbestos abatement projects. It replaces the traditional method of tape and poly to minimize failures. Save time and money with BearAcade®.
Trusted by Growers, Builders, and Distributors
We are trusted by contractors and distributors across construction and agriculture industries, our American-made products combine reliability with quality and innovation. We protect and enhance projects from the ground up with reliable solutions, responsiveness, and quick turnarounds.
As an Americover customer, you will receive the personalized support of a dedicated account manager to simplify the ordering process and ensure the best solution for every one of your projects. Our friendly, knowledgeable staff is here to answer your questions and fulfill orders Monday-Friday from 6 a.m. to 6:30 p.m. Pacific Standard Time. If you would like to speak with one of our experts, call us at 760-388-6294 or contact us.