Air Filtration & Demand-Controlled Ventilation

Evidence-supportedB/CgradePlausibility · Plausible / establishedAtmosphere, Gas & Pressure

Route ambientInvasiveness non-invasiveDirection subtractive

The strongest degradative-load-removal case in the scan. The grade attaches to the indoor-air-health literature, not to any device: filtering particulates and controlling ventilation improves measurable indoor-air outcomes.

Origin & lineage

Indoor-air-quality engineering.

Claimed mechanism

Filtration removes airborne particulates; demand-controlled ventilation manages CO2 and pollutant load.

Plausibility

Plausible / established — the removal of indoor-air load is well characterised.

Evidence — grade B/C

Grade attaches to the indoor-air-health literature (government IAQ reviews; peer-reviewed 2025), not to any device. The strongest degradative-load-removal case in the scan.

Market

Makers: HVAC / air-quality industry.
Models: HEPA + DCV systems.
Price: Building-scale.

Kernel — keep vs set aside

Keep — real substrate

A real, measurable removal of airborne degradative load.

Set aside — claim

The health benefit is an indoor-air-quality fact, not a device-specific longevity claim.

Regulatory status by jurisdiction

Registration or clearance is a market-access fact, never proof of efficacy.

US — FDA	Not a medical device.
EU — MDR	Building/appliance standards, not a medical device.
Russia	—
China — NMPA	—
Australia — TGA	—

Air Filtration & Demand-Controlled Ventilation

Kernel — keep vs set aside

Regulatory status by jurisdiction

Sources