Powered by Airdog. The AirSoap X5 is built on Airdog's TPA filtration and carries Airdog branding on the unit and its packaging. AirSoap X5 brings TPA (Two-Pole Active) filtration to large rooms and open living spaces — covering up to 1,600 sq ft with smart auto mode. TPA doesn't trap particles the way a HEPA filter does; it charges each particle and destroys it in an ionic field, then collects the remains on washable, reusable plates. That means no filter subscriptions and no drop-off in airflow as a filter clogs. TPA captures down to 14.6 nanometers, roughly 20 times finer than HEPA's practical floor, which covers smoke, pollen, dander, mold spores, and dust. It runs at about 30 dB on its low setting, with Auto and Sleep modes. The five-stage process ends with a catalytic layer that handles odors, VOCs, and trace ozone. Rinse the plates, reinsert, and it's ready again. Ships in Airdog packaging. This unit is manufactured by Airdog and arrives in an Airdog-branded box with Airdog documentation — not AirSoap packaging. It is the same air purifier described on this page, sold and supported by PhoneSoap.