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Negative Air Machines for Containment & Remediation
Negative Air Machines: Create Negative Pressure Containment
Negative air machines create and maintain negative pressure inside containment areas to prevent contaminated air from escaping to clean spaces during mold remediation, asbestos abatement, lead removal, and other hazardous material handling operations. Proper negative pressure ensures all air flows into the work area through controlled entry points rather than leaking contaminated air to adjacent spaces. HEPA-filtered exhaust from negative air machines safely vents outside the building or to approved discharge areas while maintaining the pressure differential required by industry standards and regulations.
HEPA Filtration for Hazardous Applications
Negative air machines use true HEPA filters to capture 99.97% of particles at 0.3 microns, including hazardous materials like asbestos fibers, lead dust, mold spores, and other regulated contaminants. This filtration level meets EPA, OSHA, and industry requirements for remediation and abatement work where proper air handling is legally mandated. Certified HEPA negative air machines provide the documentation needed for regulatory compliance and protect workers from hazardous exposure during containment operations.
Shop similar collections: Air Scrubbers | HEPA Negative Air Machines | Negative Air for Mold
Variable CFM for Different Containment Sizes
Negative air machines offer variable CFM settings to match airflow to containment volume and achieve required air changes per hour for different project types. Higher CFM handles larger containment areas while lower settings suit smaller work zones without over-pressurizing. Calculate required negative air machine capacity based on containment volume and the air changes specified for your application, typically 4-6 for general containment and higher for hazardous material work. Multiple smaller negative air machines often provide better pressure distribution than a single large unit in complex containment configurations.
Verify negative pressure with manometer readings rather than assuming equipment is maintaining proper containment. Document pressure readings throughout projects for compliance records and quality assurance. Position machines to create effective airflow patterns that pull contaminated air through filtration before exhausting or recirculating.
Frequently Asked Questions
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An additional piece of information to account for is that we have always employed high grade furnace filters in our home’s central HVAC system. With that high grade filtration in place both prior to and after acquiring a Brio home air filter, we all quickly agreed that deploying the Brio in our home made an easily noticeable positive difference in breathing inside our home. Additionally, those of us who clean our home have observed that dust builds up slower on our floors and furniture than before we deployed the Brio unit.
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