Title:
AIR PURIFYING UNIT, AIR PURIFYING DEVICE AND AIR PURIFYING ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2020/114312
Kind Code:
A1
Abstract:
An air purifying unit (52) includes a soil container (8) containing soil (5), an air flow generator（3）for drawing air from outside of the air purifying unit (52), through the soil (5) in the soil container (8), and out of the air purifying unit (52), and an automatic nutrient delivery system for delivering a nutrient to the soil (5).
Inventors:
WONG TAK WING (CN)
Application Number:
PCT/CN2019/121619
Publication Date:
June 11, 2020
Filing Date:
November 28, 2019
Export Citation:
Assignee:
RENAUD GREEN TECH LIMITED (CN)
International Classes:
F24F3/16; F24F12/00
Foreign References:
| KR20020020156A | 2002-03-14 | |||
| CN108260398A | 2018-07-10 | |||
| CN106594915A | 2017-04-26 | |||
| CN106642366A | 2017-05-10 | |||
| US5180552A | 1993-01-19 | |||
| JPH0724242A | 1995-01-27 | |||
| US5078972A | 1992-01-07 | |||
| CN206540244U | 2017-10-03 | |||
| CN201342117Y | 2009-11-11 | |||
| JP2004020137A | 2004-01-22 | |||
| JP2007216121A | 2007-08-30 |
Other References:
See also references of EP 3891438A4
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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