Patent · US Active

Filtration device for air purification appliance

US10561983B2 · kind B2 · utility

0Cited by
3References
12Claims
0Family size

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Key dates

Filing dateSep 24, 2015
Grant dateFeb 18, 2020
Priority date
Expiry dateSep 24, 2035

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF24F8/15
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A filtration device for an air purification appliance includes a first filtering cartridge structure containing a classic absorbent or adsorbent material selected from activated carbon or zeolite and a second, different filtering cartridge structure holding a filtering medium consisting of a specific adsorbent material which is porous and functionalized with at least one probe molecule in such a way as to trap aldehyde-type chemical contaminants.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.