KJF-B01 Air Conditioner Companion
The Legom KJF-B01 Air Conditioner Companion Air Purifier is the flagship model in the Legom KJF AC companion range, delivering independently verified removal rates for bacteria, viruses, formaldehyde, PM2.5, and allergens — installed directly within the air conditioner without occupying any room space, producing zero noise, and requiring zero installation modifications to the AC unit itself.
Combining electrostatic dust-removal with zero consumables and near-zero power consumption, the KJF-B01 is engineered around six zero commitments: zero consumables, zero secondary pollution, zero noise, nearly zero power consumption, zero space, and zero installation complexity. Its removal performance is documented by specific figures: >99.99% removal of Staphylococcus albus bacteria, >99.99% removal of H1N1 Influenza A virus, >99.99% allergen removal, >93.7% formaldehyde removal, and 92.7% PM2.5 efficiency — making it the only model in the Legom KJF series with published independent performance data across all five key pollutant categories.
Key Benefits
- 99.99% bacteria and virus removal — independently verified – Removal rate of Staphylococcus albus exceeds 99.99% and removal rate of H1N1 Influenza A virus exceeds 99.99%, providing the highest level of documented pathogen elimination in the Legom AC companion range
- 99.99% allergen removal – Verified removal rate above 99.99% for allergens, providing meaningful relief from allergy symptoms in spaces served by the AC system
- 93.7% formaldehyde removal – Documented removal of formaldehyde concentration exceeding 93.7%, addressing the primary VOC concern in newly renovated or furnished spaces
- 92.7% PM2.5 efficiency – Electrostatic dust-removal field captures fine particulate matter at 92.7% efficiency, removing dust, smoke, and pollen from the recirculated AC air stream
- Ozone output below 0.003 mg/m³ – Ozone concentration from the purification process is documented at below 0.003 mg/m³, well within safe indoor air quality limits across all major international standards
- Zero consumables – No filter element replacement required at any point during the unit’s service life
- Zero secondary pollution – The purification process does not generate secondary contaminants that would degrade indoor air quality
- Zero noise – No moving parts; operates silently within the AC unit
- Zero installation complexity – Installs directly into the air conditioner without modifications, drilling, or structural changes
- Zero space – Completely concealed within the AC unit, invisible in the served room
- Near-zero power consumption – Extremely low energy draw that adds negligible operating cost to the AC system
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | KJF-B01 |
| Dimensions | 633.2 × 195.7 × 92.2mm |
| Weight | 3.56 kg |
| Purification Technology | Electrostatic dust-removal electric field |
| Consumables | None |
| Installation Location | Within the air conditioner (living room, bedroom, office AC) |
Verified Removal Performance
| Pollutant | Removal Rate / Performance |
|---|---|
| Staphylococcus albus (bacteria) | > 99.99% |
| H1N1 Influenza A virus | > 99.99% |
| Allergens | > 99.99% |
| Formaldehyde concentration removal | > 93.7% |
| PM2.5 efficiency | 92.7% |
| Ozone concentration output | < 0.003 mg/m³ |
KJF Series Comparison
| Parameter | KJF-B01 | KJF-B02 | KJF-B03 |
|---|---|---|---|
| Verified removal data | Full (5 categories) | Partial | Not specified |
| Bacteria removal | >99.99% | Yes (UV) | Yes (ion-catalytic) |
| Formaldehyde removal | >93.7% | Yes (photolysis) | Not specified |
| PM2.5 efficiency | 92.7% | <5 microns | PM2.5 |
| Ozone output | <0.003 mg/m³ | Trace | Not specified |
| Technologies | Electrostatic | 4 (ions+UV+plasma+photolysis) | Ion-catalytic dual |
| Voltage | Not specified | 12VDC | 220VAC |
Application & Use Cases
- Living rooms and bedrooms requiring verified pathogen elimination – Where documented removal rates for specific bacteria and viruses are needed rather than general purification claims, the KJF-B01’s published >99.99% removal data for Staphylococcus albus and H1N1 Influenza A virus provides the evidence base for procurement decisions
- Allergy sufferers and sensitive individuals – The >99.99% allergen removal rate makes the KJF-B01 the strongest choice in the KJF range for households where allergen load significantly affects health and comfort
- Newly renovated or furnished spaces with formaldehyde concerns – The >93.7% formaldehyde removal rate addresses the primary VOC risk in spaces with new furniture, flooring, or paint during the off-gassing period
- Offices and commercial spaces requiring documented air quality standards – Where air quality compliance, ESG reporting, or facility management standards require documented purification performance, the KJF-B01’s specific removal data supports procurement justification
- Medical and high-sensitivity environments – The documented >99.99% removal of H1N1 Influenza A virus and Staphylococcus albus makes the KJF-B01 appropriate for environments where pathogen load reduction is a clinical or operational priority
Installation Notes
- The KJF-B01 installs directly within the air conditioner — no drilling, no duct modification, and no structural changes to the AC unit or the room are required
- Confirm that the internal dimensions of the AC unit’s filter or inlet area are compatible with the 633.2 × 195.7 × 92.2mm unit body before ordering
- The unit’s power and voltage specifications are not listed in the current datasheet — contact the Legom team to confirm power supply requirements for your specific AC model before installation
- No filter element replacement is required at any point. The electrostatic purification system does not use consumable media
- Maintenance requirements are minimal — contact the Legom team for the recommended service interval and cleaning procedure for the electrostatic module
- The ozone output of <0.003 mg/m³ is well below major international indoor air quality guidelines. Ensure normal AC air circulation is maintained during operation
Frequently Asked Questions
What makes the KJF-B01 the flagship model in the KJF range?
The KJF-B01 is the only model in the KJF series with published independent removal data across five key pollutant categories: bacteria (>99.99%), H1N1 Influenza A virus (>99.99%), allergens (>99.99%), formaldehyde (>93.7%), and PM2.5 (92.7%). It also documents its ozone output at below 0.003 mg/m³. This level of documented performance data makes the KJF-B01 the appropriate choice when verified purification efficacy — not just feature claims — is the basis for selection.
How does the KJF-B01 achieve >99.99% bacteria and virus removal?
The KJF-B01 uses an electrostatic dust-removal electric field to charge and capture airborne particles including bacteria and viruses. The high electric field strength concentrates and immobilizes biological particles on the collector surface with very high efficiency, achieving the documented removal rates for Staphylococcus albus and H1N1 Influenza A virus. The electrostatic approach eliminates the need for UV lamps, photocatalyst coatings, or consumable filter media to achieve these removal rates.
Is 0.003 mg/m³ of ozone safe?
Yes. The WHO indoor air quality guideline for ozone is 0.1 mg/m³ for a one-hour average. The KJF-B01’s ozone output of below 0.003 mg/m³ is more than 33 times below this threshold. For comparison, natural outdoor ozone concentrations in many urban environments regularly exceed this level. The trace ozone from the KJF-B01 also contributes to odor decomposition and harmful gas breakdown — providing a purification benefit rather than an air quality risk at this concentration level.
Does the KJF-B01 provide fresh outdoor air or CO2 reduction?
No. Like all KJF series models, the KJF-B01 purifies the recirculated indoor air passing through the air conditioner. It does not introduce outdoor fresh air and does not reduce CO2 concentration. For spaces where CO2 dilution is also required, a fresh air ventilation unit such as the XFQT-60-01S or one of the XFDD2 ceiling ventilators should be considered alongside the KJF-B01.
How does the KJF-B01 compare to the KJF-B02 and KJF-B03?
The KJF-B01 is distinguished by its comprehensive published removal data across all five key pollutant categories, and its ozone output documentation. The KJF-B02 uses four purification technologies including UV and photolysis but has fewer published specific removal figures. The KJF-B03 uses ion-catalytic dual purification on 220VAC at 20W. All three models share zero consumables and zero room footprint. Choose the KJF-B01 when documented removal rates for specific pathogens and pollutants are the primary selection criterion.
OEM & ODM Customization
Legom supports OEM and ODM services for the KJF-B01 Air Conditioner Companion Air Purifier. Our engineering team can customize dimensions, specifications, and branding for specific AC system configurations. All customization projects are handled with strict confidentiality. Contact us via WhatsApp or info@legomsmart.com.
User Manual
Product information last reviewed by the Legom Technical Team. For the most current specifications, refer to the official datasheet or contact our sales team.
Custom OEM & ODM Solutions
Legom is a direct manufacturer offering end-to-end OEM and ODM services. With our in-house engineering and production capabilities, we work closely with distributors and system integrators to deliver fully customized solutions under strict NDA.
