US 12,239,860 B2
Air treatment apparatus
George Joseph Moone, Reading (GB)
Assigned to Dyson Technology Limited, Malmesbury (GB)
Appl. No. 17/312,777
Filed by Dyson Technology Limited, Wiltshire (GB)
PCT Filed Nov. 4, 2019, PCT No. PCT/GB2019/053117
§ 371(c)(1), (2) Date Jun. 10, 2021,
PCT Pub. No. WO2020/120930, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 1820250 (GB), filed on Dec. 12, 2018.
Prior Publication US 2022/0047895 A1, Feb. 17, 2022
Int. Cl. A62B 7/10 (2006.01); H04R 1/10 (2006.01)
CPC A62B 7/10 (2013.01) [H04R 1/1008 (2013.01); H04R 1/1075 (2013.01); H04R 1/1091 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An air treatment apparatus comprising a head wearable air purifier, the head wearable air purifier comprising:
a first speaker assembly arranged to be worn over a first ear of a user and a second speaker assembly arranged to be worn over a second ear of the user;
wherein the first speaker assembly comprises a speaker, a filter assembly, an air flow generator for creating an airflow through the filter assembly, and an air outlet downstream from the filter assembly for emitting a filtered airflow from the first speaker assembly;
a nozzle comprising an air inlet arranged to receive the filtered airflow from the air outlet of the first speaker assembly and an air outlet arranged to emit the received filtered airflow from the head wearable air purifier; and
a sensor in electrical communication with the air flow generator and a control circuit, wherein the control circuit stops the air flow generator when the nozzle is not coupled to the first speaker assembly;
wherein the nozzle is detachably coupled to the first speaker assembly by a magnetic attachment between a nozzle-to-speaker connector provided on the nozzle and a speaker-to-nozzle connector provided on the first speaker assembly.