美国采购需求：胸垫，加热背心内衬，硅胶胸垫，背心内衬，防护等级，防护系列

I'm reaching out to request some guidance on the deflation process for the pressure-relieving air seat cushion we discussed. It's crucial for me to understand the correct method to ensure proper use and maintenance of the product. Any specific steps or tips you could provide would be greatly appreciated, as I want to make sure I'm handling it correctly. Additionally, if there are any troubleshooting tips or common issues related to deflating this type of cushion, I'd love to hear about those as well. Clear instructions will help to enhance user experience and prolong the life of the product. Looking forward to your detailed reply!