Indoor Air Quality & Ventilation Upgrades
Filtration, outside air and exhaust upgrades that meet ASHRAE 170 and 62.1 — verified with airflow and pressure documentation.
Air quality work is only credible when it is measured. CMI approaches IAQ as an engineering scope: measure the outside air actually delivered, the exhaust actually removed, filter loading against fan capacity, and the pressure relationships between spaces — then upgrade what the data says is deficient and document the result.
Typical scope includes filtration upgrades to MERV 13/14/15 or HEPA with fan and static pressure analysis, outside air economizer and damper repair, dedicated outside air systems, exhaust and make-up air corrections, humidity control and dehumidification, UV-C and bipolar ionization where appropriate, duct cleaning coordination, and CO2 demand-control ventilation tied into the BAS.
For healthcare and therapeutic facilities, we work to ASHRAE 170 and CDPH requirements: air changes per hour, positive and negative pressure rooms, isolation and protective environment rooms, pharmacy compounding suites under USP 797/800, procedure and sterile processing areas. Every upgrade leaves a verification report you can hand to a surveyor.
Scope & capabilities
- Ventilation assessments: OA/EA measurement, ACH verification, pressure mapping
- Outside air, economizer, damper and DOAS scope
- Positive/negative pressure room construction and certification support
- Humidification, dehumidification and reheat control
- CO2 demand-control ventilation and BAS integration
- Filtration upgrades with fan, static pressure and housing analysis
- Exhaust and make-up air corrections for labs, kitchens and soiled utility
- USP 797/800 compounding room mechanical scope
- UV-C, needlepoint ionization and photocatalytic options where justified
The technical envelope
- Standards
- ASHRAE 170, ASHRAE 62.1, CDPH, USP 797/800, Title 24
- Filtration
- MERV 8 – 16, HEPA with challenge testing support
- Verification
- Airflow, ACH, pressure differential and humidity documentation
- Monitoring
- Room pressure monitors, CO2 and RH sensors on the BAS
- Certification
- Third-party certifier coordination for critical rooms
Facility types
IAQ & Ventilation Upgrades — straight answers
- Can our existing air handler carry MERV 14 or HEPA filters?
- Sometimes, and sometimes not — that is exactly what we check first. We measure current static pressure and fan capacity, model the added resistance, and tell you whether the upgrade needs a fan, motor, drive or housing change to avoid starving the zones.
- Do you certify pressure relationships for isolation rooms?
- We perform and document the mechanical work and airflow verification and coordinate the independent certifier where one is required. You receive the airflow, ACH and differential-pressure documentation with the closeout package.
- Is UV-C or ionization worth installing?
- Only where filtration, outside air and pressure relationships are already correct. We will tell you plainly when a device is being sold as a substitute for ventilation that simply needs to be repaired.
Get a number you can budget against
We walk the plant before we price it. You get equipment condition, options, phasing and a schedule — not a guess with a contingency wrapped around it.