The quality of indoor air has become an increasingly significant concern due to its direct impact on human health and overall well-being. With individuals spending a substantial amount of time indoors, the presence of various pollutants, including particulate matter, volatile organic compounds (VOCs), allergens, and pathogens, has driven the demand for effective air purification solutions. The market for portable air purifiers has expanded considerably, offering a diverse range of technologies aimed at improving indoor air quality. This report provides a comprehensive review of the TRIO Plus 5 Stage Portable Air Purifier, examining its features, performance, and overall value based on currently available information.
The TRIO Plus 5 Stage Portable Air Purifier, manufactured by Field Controls, is designed as a comprehensive solution for enhancing indoor air quality through a multi-layered purification process. A key feature of this device is its five-stage filtration system, which includes a pre-filter, an activated carbon filter, an H13 HEPA filter, two UVC lamps, and PRO-Cell technology. The manufacturer and retailers highlight the unit’s ability to rapidly purify the air in large rooms, covering up to 3,300 square feet within one hour. The inclusion of an H13 HEPA filter is emphasized, with claims of capturing 99.97% of particles as small as 0.1 microns. For germ reduction, the TRIO Plus is equipped with two high-intensity UVC lamps. Additionally, PRO-Cell technology is incorporated for the reduction of volatile organic compounds (VOCs). A smart air quality sensor is integrated to automatically adjust the airflow based on real-time air quality measurements. The unit operates with a noise level ranging from 24.7 to 52.8 decibels, which is generally considered quiet. Furthermore, the TRIO Plus has received Energy Star and CARB certifications. Notably, independent testing has demonstrated a 99.99% reduction of the SARS-CoV-2 virus within 30 minutes of operation.
The consistency in the reported specifications across various sources, including the official website and retail platforms, lends credibility to the product’s attributes. The detailed technical information provided by the manufacturer, such as airflow (CFM) separate from the Clean Air Delivery Rate (CADR) and the intensity of the UV-C lamps, suggests a focus on technical performance and transparency. The following table summarizes the key technical specifications of the TRIO Plus:
| Specification | Value | Snippet(s) |
| Model Number | TRIO-Plus / 602604400 | 2 |
| Dimensions | 17.3″ W x 28″ H x 9″ D | 3 |
| Weight | 26.2 LBS | 3 |
| CADR (Dust) | 305 CFM | 2 |
| CADR (Smoke) | 305 CFM | 2 |
| CADR (Pollen) | 329 CFM | 2 |
| Airflow | 440 CFM | 2 |
| Coverage Area (3 ACH) | 1100 sq ft | 2 |
| Coverage Area (1 ACH) | 3300 sq ft | 2 |
| Noise Level | 24.7 – 52.8 dB | 3 |
| Energy Consumption | 100W | 2 |
| Warranty | 1 year limited (excluding lamps and filters) | 3 |
| UV-C Lamp Intensity | 10,620 μW/cm² @ Surface | 3 |
| Filter Replacement Frequency | 6 months (filter set), 12 months (UVC lamps) | 2 |
| Certifications | AHAM, Energy Star, CARB | 2 |
The TRIO Plus employs a comprehensive five-stage filtration system to address a wide range of airborne pollutants. The first stage involves a pre-filter designed to capture larger particles such as dust, hair, and pet dander. This pre-filter is washable and vacuumable, which is beneficial as it extends the lifespan of the subsequent, more specialized filters. Regular cleaning of the pre-filter, recommended every 1 to 3 months, can contribute to the overall efficiency and longevity of the system. The reusability of the pre-filter offers an advantage by potentially reducing long-term operational costs and minimizing waste associated with disposable pre-filters.
The second stage utilizes an activated carbon filter, which is crucial for absorbing odors, gases, and volatile organic compounds (VOCs). This filter helps to eliminate common household smells originating from sources like smoke, pets, and cooking. The activated carbon filter is typically part of the filter replacement kit, which the manufacturer recommends replacing every 6 months. The inclusion of this stage is vital for a comprehensive air purification system as it targets pollutants that HEPA filters are not designed to capture, thereby improving overall indoor air quality and comfort.
The third stage features an H13 HEPA filter, which is known for its high efficiency in capturing at least 99.97% of particles as small as 0.3 microns, and even down to 0.1 microns. This hospital-grade filtration level is effective against a wide array of airborne particles, including dust, pollen, pet dander, mold spores, and other allergens. Similar to the activated carbon filter, the H13 HEPA filter is also part of the 6-month replacement filter kit.2 The use of an H13 HEPA filter, which exceeds the filtration efficiency of standard HEPA filters (H11 or H12), indicates a superior level of particulate removal, making it particularly beneficial for individuals with allergies or respiratory issues.
The fourth stage incorporates UV-C light with two high-intensity lamps that provide germicidal action. This technology helps to neutralize airborne bacteria, viruses, and fungi. The UVC lamps are enclosed within the unit and are CARB certified as non-ozone producing, addressing potential concerns about harmful ozone emissions. The manufacturer recommends replacing the UVC lamps every 12 months, although they may last up to 2 years with proper care. The inclusion of UV-C light offers an additional layer of protection against airborne pathogens, which is especially valuable in environments where hygiene is a priority.
The fifth and final stage features PRO-Cell Technology, a patented system designed for reducing harmful chemicals and gases, also known as volatile organic compounds (VOCs). This technology utilizes photocatalytic oxidation (PCO) with a titanium dioxide coated surface that is activated by the UV-C light. The PCO process breaks down VOCs into harmless substances like water vapor and carbon dioxide. This technology functions similarly to a car’s catalytic converter in its ability to neutralize toxic gases. The PRO-Cell technology offers a more advanced method for VOC removal compared to activated carbon filtration alone, potentially addressing a broader range of gaseous pollutants and possibly having a longer effective lifespan for certain types of VOCs.
The performance of the TRIO Plus can be evaluated through its Clean Air Delivery Rate (CADR) and coverage area. The unit boasts a CADR of 305 CFM for dust and smoke, and 329 CFM for pollen, indicating a strong ability to clean large rooms effectively. Higher CADR values generally correlate with faster air purification. The TRIO Plus is designed to cover an area of up to 3,300 sq. ft. with 1 air change per hour (ACH) and 1,100 sq. ft. with 3 air changes per hour (ACH). Sizing recommendations suggest that for 5 ACH, the unit is suitable for 660 sq ft, for 2 ACH up to 1100 sq ft, and for 1 ACH up to 3300 sq ft. While the large coverage area is a significant advantage, it is important to note the trade-off between coverage and the frequency of air changes per hour. Higher ACH is generally preferred for more thorough air purification.
User reviews and ratings provide further insight into the real-world performance of the TRIO Plus. On Amazon, the air purifier has an average rating of 4.6 out of 5 stars based on 32 ratings, with users highlighting its effectiveness, ease of use, and positive customer service experiences. Wayfair users have rated it 4.8 out of 5 stars across 19 reviews.6 Walmart shows an even higher rating of 4.9 out of 5 stars from 25 reviews, with praise for its quiet operation and overall effectiveness. Testimonials on the Field Controls website also echo positive experiences. A YouTube review highlighted its benefits for individuals with allergies and asthma, noting the hospital-grade HEPA filter, UV light, and VOC neutralization capabilities, although the price mentioned in this review ($700) appears higher than current retail prices. Some negative feedback includes a single report of a defective unit and a note about the necessity of correct filter installation for the unit to operate properly. Overall, the consistently positive user feedback across various platforms suggests a high level of satisfaction with the TRIO Plus’s performance and features.
The manufacturer specifies a noise level range of 24.7 to 52.8 decibels, which is generally considered quiet. Some user reviews corroborate this, with one describing it as “super quiet”. However, another user noted that while it is quiet on medium settings, it can be louder at higher speeds. A YouTube review reported noise levels of 48 dB on low and 68 dB on high settings. While the manufacturer’s claim of quiet operation is supported by some users, the potential for increased noise at higher fan speeds is something to consider. The provided decibel range offers a more objective measure for potential buyers.
The TRIO Plus has a rated energy consumption of 100 watts. Its Energy Star certification indicates that it meets certain standards for energy efficiency. The estimated annual energy use is approximately 526.57 kWh per year. This certification and the estimated annual consumption suggest that the TRIO Plus is relatively energy-efficient for an air purifier with its capacity and features.
When compared to other portable air purifiers, the TRIO Plus stands out due to its comprehensive 5-stage filtration system, which includes not only HEPA and activated carbon filters but also UV-C light and PRO-Cell technology. While some competitors may offer UV-C light or specialized filters, the combination present in the TRIO Plus provides a broad approach to air purification. For instance, the Clorox Ultra Air Purifier features a 4-stage system with True HEPA and UV-C , and the Homedics TotalClean includes a 5-in-1 system with True HEPA, UV-C, and an ionizer. The Daikin MCB50YSAU utilizes a 3-stage filter with UV-C LED. In terms of CADR and coverage, the TRIO Plus with a CADR of 305 CFM and coverage up to 1100 sq ft (at 3 ACH) is competitive with other high-performance air purifiers designed for large rooms. The Clorox Ultra Air Purifier has a CADR of 311 CFM for dust and covers 460 sq ft effectively , while the Homedics TotalClean is suitable for 246 sq ft with air changes every 12.5 minutes. The Daikin model’s CADR and coverage are not specified in the provided snippets, but it is noted to have a quiet mode. The noise level of the TRIO Plus (24.7 – 52.8 dB) appears reasonable for its capacity, and its Energy Star certification suggests good energy efficiency, although direct comparisons with the specific wattage of competitor models would provide a more precise assessment.
| Model | Filtration | CADR (Dust) | Coverage (3 ACH) | Noise Level | Energy Consumption | UV-C | PCO | Price (approx.) |
| TRIO Plus | 5-Stage (Pre, Carbon, H13 HEPA, UV-C, PRO-Cell) | 305 | 1100 sq ft | 24.7 – 52.8 dB | 100W | Yes | Yes | $250 – $480 |
| Clorox Ultra Air Purifier | 4-Stage (Pre, Activated Carbon, True HEPA, UV-C) | 311 | 460 sq ft | Not specified | Not specified | Yes | No | $250 |
| Homedics TotalClean | 5-in-1 (Pre, Activated Carbon, True HEPA, UV-C, Ionizer) | Not specified | 246 sq ft | Not specified | Not specified | Yes | No | $210 |
| Daikin MCB50YSAU | 3-Stage (Pre, HEPA, Activated Carbon) + UV-C LED | Not specified | Not specified | Quiet Mode | Not specified | Yes | No | $325 |
Based on the available information, the TRIO Plus 5 Stage Portable Air Purifier offers several advantages. Users report effective air purification, particularly for allergies, dust, odors, and smoke, and appreciate its suitability for large rooms. The comprehensive 5-stage filtration system, including the H13 HEPA filter, activated carbon, UV-C light, and PRO-Cell technology, is a significant strength. The unit is reported to operate quietly at lower settings and features a smart air quality sensor with an automatic mode. Its Energy Star and CARB certifications provide assurance of energy efficiency and ozone safety. Notably, it has demonstrated effectiveness against the SARS-CoV-2 virus , and the inclusion of a reusable pre-filter can help reduce maintenance costs. Some users have also reported positive experiences with customer service.
However, there are also some reported disadvantages. The TRIO Plus may have a higher price point compared to basic air purifiers. There has been at least one report of a defective unit, and it is important to ensure correct filter installation for proper operation. Noise at higher fan speeds might be noticeable for some individuals. The ongoing costs of replacing filters and UV lamps should also be considered. Additionally, there is a warning about potential exposure to Mercury, which is common for products containing UV lamps. Some users might experience an initial odor from new filters , and in environments with high levels of air contaminants, the filters may require more frequent replacement.
The price of the TRIO Plus 5 Stage Portable Air Purifier varies across retailers and may be subject to sales and promotions. On the Field Controls official website, it is listed on sale for $249.99, with a regular price of $479.99. Wayfair offers it on sale for $251.56 (regularly $449.99) in one listing and $299.99 (regularly $499.99) in another. Lowe’s has it priced at $289.99. Amazon lists it with a regular price of $479.99, with potential variations for sales. A significantly higher price of $915.00 is found on Global Industrial, which might cater to business or commercial clients. A very low price on School Specialty ($207.71) is likely for replacement lamps rather than the complete unit. The wide range suggests that price comparison across different retailers is advisable. The TRIO Plus is available from major online retailers such as Field Controls, Amazon, Wayfair, Lowe’s, Walmart, as well as specialized air purifier vendors like US Air Purifiers and Electronic Air Cleaners. It can also be found on platforms like Global Industrial and potentially through educational supply channels like School Specialty. This broad availability makes the product relatively accessible to consumers.
Maintaining the TRIO Plus involves regular cleaning of the pre-filter every 1 to 3 months using a vacuum or by washing it. The filter set, which includes the HEPA, carbon, and pre-filter, should be replaced every 6 months under normal operation, although this can be extended up to a year with frequent pre-filter cleaning. The UVC lamps are recommended for replacement every 12 months but may last up to 2 years with proper care and resetting of the unit’s timer. The air purifier has indicator lights that signal when filter and lamp replacements are needed. After replacing the filters and lamps, it is necessary to reset the corresponding counters on the unit. Additionally, the exterior of the appliance should be cleaned monthly with a soft, dry cloth.12 The cost of replacement parts varies by retailer. A filter set is priced at $99.59 on USAirPurifiers.com, $56.00 on the Field Controls website, and $60.96 on Wayfair. A pack of two UVC lamps costs $77.91 on USAirPurifiers.com, while a single lamp is $19.00 on the Field Controls website, and a pack of four is $207.71 on School Specialty.
| Component | Frequency | Estimated Cost |
| Pre-filter | 1-3 months (cleaning) | $0 |
| Filter Set (HEPA, Carbon, Pre) | 6 months | $56 – $100 |
| UVC Lamps (2) | 12 months | $38 – $78 |
The TRIO Plus has received several important certifications, including AHAM Verified for its CADR performance, Energy Star certified for its energy efficiency, and CARB certified for its ozone safety, confirming that it does not produce harmful levels of ozone. These certifications provide independent validation of the product’s claims regarding performance, energy use, and safety. Furthermore, independent laboratory testing conducted by Innovative Bioanalysis in a BSL3 lab has demonstrated the TRIO Plus’s effectiveness against various airborne pathogens, including a greater than 99% reduction in SARS-CoV-2, influenza, bacteria, and mold. Specific results include a 99.99% reduction of SARS-CoV-2 in 30 minutes , over 99.99% reduction of Staphylococcus aureus and Aspergillus Brasiliensis in 60 minutes , and a 99.63% reduction of Bacillus Subtilis spores in 120 minutes. These tests were conducted using methods such as GB 21551.3-2010. The manufacturer also makes available the Bioanalysis Lab Report and Biological Test Report for further scrutiny. The Field Controls website references recommendations from the CDC, WHO, and ASHRAE regarding the use of HEPA and UVC filtration for improving indoor air quality. The availability of these independent testing results and the alignment with recommendations from reputable health organizations provide strong support for the effectiveness of the TRIO Plus.
In conclusion,
The TRIO Plus 5 Stage Portable Air Purifier presents a comprehensive approach to improving indoor air quality. Its 5-stage filtration system effectively targets a wide range of airborne pollutants, including particulate matter, odors, VOCs, and pathogens. The unit demonstrates high performance with a strong CADR and a large coverage area, making it suitable for various room sizes. User reviews are overwhelmingly positive, indicating satisfaction with its effectiveness, quiet operation, and ease of use. The TRIO Plus has also been scientifically validated for its effectiveness against SARS-CoV-2 and other microorganisms through independent lab testing and is certified by AHAM, Energy Star, and CARB, providing assurance of performance, energy efficiency, and ozone safety.
The TRIO Plus appears to be a valuable option for individuals with allergies, asthma, or concerns about airborne pathogens due to its advanced filtration technologies and proven effectiveness. Its large coverage area makes it well-suited for larger rooms or open living spaces. However, potential buyers should consider the ongoing costs associated with filter and UV lamp replacements. While generally quiet, noise levels at higher fan speeds may be a factor for some users. It is advisable to compare prices across different retailers to find the most competitive offer. For those interested in a deeper understanding of the product’s performance, reviewing the full scientific test reports available from Field Controls would be beneficial. Overall, the TRIO Plus 5 Stage Portable Air Purifier offers a robust and well-validated solution for enhancing indoor air quality.
