Field Controls TRIO PLUS 5-Stage HEPA Air Purifier
- 3300 sq ft stated coverage
- 5-stage filtration: HEPA, carbon, pre-filter, catalyst, UVC
- 0.1 micrometer particle retention size
- 55 dB noise level
- 100 watts, AC powered
- 5 speeds plus auto, sleep mode and timer
- AHAM and CARB certified
- 26.2 lb weight
Last refreshed Sep 24, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A multi-stage purifier with HEPA, carbon and UV for very large rooms or open areas, certified by AHAM and CARB. The listing gives no filter life or airflow rating, so running upkeep is unknown.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B08XC19SJFCategory: HEPA Air Purifiers
Overview
A five-stage filter stack does the work in the Field Controls TRIO PLUS: a pre-filter, HEPA, carbon and a Pro-Cell catalyst, backed by UVC bulbs. It adds an air quality sensor, an auto function and touch controls.
Coverage for a very large space and a wide filter mix, including carbon and UV stages, are the strengths, along with certifications from AHAM and CARB. The limit is bulk and unlisted running details: filter life, airflow rating and bulb replacement are not stated.
Who it's for
A large living area, a basement or an open-plan floor suits a unit rated for this much floor space. Small bedrooms and buyers who want a published airflow figure should look elsewhere.
Pros and cons
- Five filtration stages
- HEPA with carbon and catalyst
- UVC bulbs included
- Air quality sensor with auto mode
- Airflow rating not listed
- Wide body needs clear floor space
Performance notes
A pre-filter, HEPA and carbon layer each catch different things: the pre-filter larger dust, HEPA fine particles, and carbon odors and gases. The catalyst and UVC stages act on pollutants chemically rather than trapping them. The air quality sensor feeds the auto mode, and the speeds and sleep mode trade airflow against noise.
Specifications
| Brand | Field Controls |
|---|---|
| Dimensions & fit | |
| Particle Retention Size | 0.1 micrometer |
| Item Dimensions D x W x H | 9 x 28 x 17 inches |
| Item weight | 26.2 pounds |
| Capacity & performance | |
| Noise Level | 55 dBhigher than 87% of 48 hepa air purifiers |
| Number of speeds | 5 |
| Wattage | 100 watts |
| Power & efficiency | |
| Power Source | AC |
| H13 HEPA Efficiency | Captures 99.97% of particles down to 0.1 microns. |
| Construction & materials | |
| Color | White |
| Included components | |
| Included Components | Air purifier, filters and UVC bulbs |
| Other details | |
| Floor Area | 3300 square feet |
| Filter Type | HEPA, carbon, pre-filter, Pro-Cell catalyst |
| Control Type | Touch |
| Special Features | Air quality indicator, auto mode, sleep mode, timer |
| Specification Met | AHAM certified, CARB certified |
| Item Type Name | Portable air purifier |
| 5-Stage Filtration | Pre-filter, Carbon, H13 HEPA, UVC light, and PRO-Cell for advanced purification. |
| California Air Resource Board Certified | Brand -Field Controls Model Name - Trio Plus Model# - 602604400 EO# - G-20-263 |
| PRO-CELL TECHNOLOGY | Toxic gas (VOCs) reduction |
Closest rivals on specs
Frequently asked questions
How big is the Field Controls TRIO PLUS?
The listed dimensions are 9 inches deep, 28 inches wide and 17 inches tall, so it needs a wide footprint compared with its depth.
Does the TRIO PLUS include filters and UV bulbs?
Yes. The included components are the air purifier, filters and UVC bulbs.
Is the Field Controls TRIO PLUS a whole-house system?
No. The listing calls it a portable air purifier, and it is not described as ducted or whole-house.
What modes does the TRIO PLUS offer?
The listing names an air quality indicator, auto mode, sleep mode, a timer and five speeds.