PAT . JP 6909533![](https://www.okugawa.net/wp-content/uploads/2022/11/ventilation_acd.png)
Ventilation options can improve air circulation and down loft resilience. We propose to create air holes in the down quilt or partition by adhering a special filter on the downwear. Location of use and design can be arranged freely.
Baffle Ventilation
DNHM
DNAT
DPHM
DPAT
KNHM
KNAT
DNAT
DPHM
DPAT
KNHM
KNAT
![](https://www.okugawa.net/wp-content/uploads/2022/11/acf_01a_en.png)
![](https://www.okugawa.net/wp-content/uploads/2022/11/acf_01a_en_01.png)
![](https://www.okugawa.net/wp-content/uploads/2022/11/acf_01a_en_02.png)
Part type Ventilation
DNHM
DNAT
DPHM
DPAT
KNHM
KNAT
DNAT
DPHM
DPAT
KNHM
KNAT
![](https://www.okugawa.net/wp-content/uploads/2022/11/acf_02b_en.png)
![](https://www.okugawa.net/wp-content/uploads/2022/11/acf_02b_en_01.png)
![](https://www.okugawa.net/wp-content/uploads/2022/11/acf_02b_en_02.png)
Explanation of Air Circulation is hear.