3-Stage Filtration Guide: Control Hire Air Scrubbers

From coarse dust to crystalline silica and VOCs — no single filter can remove every airborne risk on-site. That’s why Control Hire’s Air Scrubbers feature a powerful 3-stage system:
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In construction, tunnelling, and excavation environments, airborne hazards come in many forms — from coarse dust and respirable silica to chemical fumes and volatile organic compounds (VOCs). No single filter can tackle them all.

That’s why Control Hire’s Air Scrubbers are built with a 3-stage filtration system, engineered to remove contaminants across all particle sizes and gas phases — protecting your workers, your compliance, and your project:

Stage 1: F5 Pleated Pre-Filter — Stops Dust Early

Designed for high-dust environments, this stage captures:

  • Coarse dust
  • Sand/grit
  • Lint and fibres
  • Pollen and hair

Key Benefits:

  • Extends the life of downstream HEPA and carbon filters
  • Handles heavy dust loads in demolition, excavation, and manufacturing
  • Removes most PM₁₀ and larger particles

Stage 2: H13 V-Bank HEPA Filter — Fine Particle Control

Removes ≥99.95% of ultrafine particles ≥0.3µm:

  • Respirable Crystalline Silica (RCS)
  • Diesel soot and welding fumes
  • Cement/fly ash
  • Bacteria, viruses, and bioaerosols

Key Benefits:

  • Compliance for silica dust exposure
  • Captures PM₂.₅ and PM₁ for high-risk and sensitive zones
  • Used in healthcare, labs, and clean industrial environments

Stage 3: Activated Carbon V-Bank Filter — Gas & Odour Removal

Targets vapours and molecular pollutants:

  • VOCs (adhesives, paints, fuels)
  • Ammonia, aldehydes, and mercaptans
  • Exhaust gases and chemical odours

Key Benefits:

  • Neutralises hazardous fumes from equipment and materials
  • Improves air quality in confined and enclosed worksites
  • Supports compliance with SafeWork air contaminant standards

Built for Demanding Sites

Control Hire’s filtration units are trusted in:

  • Tunnel excavation and access shafts
  • Demolition and asbestos remediation
  • Manufacturing and processing plants
  • Healthcare construction and laboratory upgrades

Why It Matters

With silica dust reforms taking effect from 1st September 2024, compliance isn’t optional — it’s law. Our 3-stage system helps you meet your duty of care under WHS regulations while protecting your people from irreversible health risks.


🔧 Need a custom setup? Our engineers can match filtration specs to your site airflow, hazard type, and ducting constraints.

Need help? Talk to our professional team.

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