5.7.7Segment

Ventilation & Air Quality Equipment

Manufacturers of commercial and industrial ventilation fans, air filtration equipment, and indoor air quality systems.

4
Verticals

Overview

Ventilation & Air Quality Equipment covers fans, blowers, air-handling, filtration, and air-purification equipment for commercial, industrial, and institutional buildings. At ~$8B it is led by ventilation and air-quality specialists (Greenheck, Daikin/AAF, Camfil, Systemair) serving the building and industrial markets.

Demand has been meaningfully boosted by post-pandemic indoor-air-quality awareness (ventilation, filtration, and air purification in schools, offices, and healthcare), alongside energy-recovery ventilation and industrial air-handling needs. It is consolidating, with IAQ a durable structural tailwind.

Market snapshot

Market size
~$8B
Growth
~6.3%CAGR (2017–22, nominal)
Companies
~382 firms
Firms by employee count

50.3% of firms have fewer than 20 employees: 192 micro-businesses, below most mandates.

The investable universe190 firms with 20+ employees
20–99
12164%
100–499
4222%
500+
2714%

Indoor air quality moved from a compliance line to a specification requirement after 2020, and filtration and ventilation demand has held rather than reverted. The equipment is unglamorous and the manufacturers are small, but the aftermarket — filters, service, commissioning — recurs against an installed base that only grows.

NAICS 333413. U.S. Census Bureau — 2022 Statistics of U.S. Businesses; U.S. Census Bureau — 2022 Economic Census.

Business model & economics

Revenue model

Ventilation/filtration equipment sales plus filter consumables

Key economics

Revenue per firm
$20,997,838
Revenue per employee
$260,783
Employees per firm
74.8
Recurring revenue
Moderate–High

recurring filter/consumable replacement

EBITDA margin
Equipment plus recurring consumables
Capex intensity
Moderate

Characteristics

  • Scale-driven — payroll is only 20% of revenue; the cost base is assets, not headcount
  • Moderate strategic-buyer pool — 27 firms exceed 500 employees; a scaled asset has buyers, but not many
  • Post-pandemic IAQ a durable structural tailwind.
  • Energy-recovery ventilation and filtration growing.
  • Filter consumables provide recurring revenue.

NAICS 333413. U.S. Census Bureau — 2022 Statistics of U.S. Businesses; U.S. Census Bureau — 2022 Economic Census.

M&A deal context

Deal activityModerate

Who’s acquiring

  • Ventilation & air-quality specialists
  • HVAC & filtration strategics
  • PE-backed platforms

What’s driving deals

  • Indoor-air-quality and filtration demand.
  • Energy-recovery ventilation adoption.
  • Consumable-driven recurring revenue.

Verticals in this segment

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