We stay with our company spirit of "Quality, Performance, Innovation and Integrity". We goal to create more value for our clients with our abundant resources, advanced machinery, experienced workers and superb solutions for Through Wall Heat Recovery Ventilation, Commercial Purifier , Car Air Purifier With Uv Light , Mini Portable Air Purifier ,Handheld Air Purifier . At our firm with quality first as our motto, we manufacture products that are entirely made in Japan, from materials procurement to processing. This enables them to be used with confident peace of mind. The product will supply to all over the world, such as Europe, America, Australia,Luxembourg , Swedish ,Namibia , Peru .With the advanced workshop, professional design team and strict quality control system, based on mid- to high-end marked as our marketing positioning, our products are fast selling onto European and American markets with our own brands such as below Deniya, Qingsiya and Yisilanya.