Trusted Manufacturer of Ventilation and Air Cleaning Solutions

The cabinet can stay identical while the compressor cannot. Export the same model to North America, turn it into an off-grid unit, or convert it into a display case, and refrigerant, power supply, efficiency and noise all have to be checked again. The three VESTAR lines are not tiers — they are four conditions landing in different places.

The easiest thing to misread about an air purifier is that it is still running. Once the filter saturates, the fan spins, the light stays on, and the air quietly stops improving. Weaker airflow, returning odours and filter paper turning from white to grey are three signs you can see without instruments. An H13 three-layer composite filter picks up from there.

KTN VQX19 mini DC compressor: 2000-6000rpm adjustability lets the controller match output to load, holding wine cooler temperature more precisely while saving energy; 12V / 24V / 48V wide voltage, R134a with a 40cc oil charge, ≤48 noise, only 0.81 kg including oil, and two matched driver boards for plug-and-play integration.

KTN H13 HEPA 3-layer composite filter screen: the outer pre-filter traps hair and lint, the medical-grade H13 HEPA layer intercepts 99.97% of 0.3μm particles, and high-density activated carbon absorbs formaldehyde, cooking fumes and second-hand smoke — all with low wind resistance that preserves the purifier's air output, in multiple sizes with OEM customization available.

KTN smart silent air purifier: negative ion technology actively captures dust, pollen, pet dander, smoke and allergens, backed by HEPA and activated carbon filtration; smart sensors read air quality and adjust fan speed automatically, with app control and timers, and operation that is near-silent on low settings.

KTN Energy Recovery Ventilator (ERV): the dual-channel independent design eliminates cross-contamination between supply and exhaust; the total heat exchange core recovers energy while keeping humidity balanced, avoiding dryness or dampness; HEPA13 filtration captures 99.97% of 0.3μm particles and the activated carbon layer adsorbs chemical pollutants such as formaldehyde, with IoT remote monitoring and intelligent mode adjustment.

KTN VQX14 mini compressor: adjustable 2000-6000rpm speed to match cooling demand, DC 24V power for battery and DC systems, driver board and cable harness included so wiring is plug-and-play, and stable R134a cooling for easy mini fridge integration.

KTN VQX19 mini compressor: small footprint for easy integration into compact equipment, DC 24V power for battery and DC systems, stable R134a cooling; a matched driver board is included so wiring is plug-and-play, and the low-vibration design keeps equipment running quietly.