Meet the Airdog AirCap, your compact TPA®-powered portable purifier that fits in a car cup-holder, backpack, or desk—perfect for personal spaces up to ~35 ft² (3.25 m²). Using Airdog’s patented Two‑Pole Active (TPA®) electrostatic filtration, it captures and eliminates 99.9% of ultrafine particles, including viruses, allergens, smoke, and bacteria, without disposable filters.  AirC... https://airdog.com.au/products/aircap-portable-air-purifier